diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client.py
index 5c52eed8a43d..4466ec5b9c18 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic/data_transfer_service_client.py
@@ -297,8 +297,8 @@ def get_data_source(
             >>> response = client.get_data_source(name)
 
         Args:
-            name (str): The field will contain name of the resource requested, for example:
-                ``projects/{project_id}/dataSources/{data_source_id}``
+            name (str): Required. The field will contain name of the resource requested, for
+                example: ``projects/{project_id}/dataSources/{data_source_id}``
             retry (Optional[google.api_core.retry.Retry]):  A retry object used
                 to retry requests. If ``None`` is specified, requests will
                 be retried using a default configuration.
@@ -381,8 +381,8 @@ def list_data_sources(
             ...         pass
 
         Args:
-            parent (str): The BigQuery project id for which data sources should be returned. Must
-                be in the form: ``projects/{project_id}``
+            parent (str): Required. The BigQuery project id for which data sources should be
+                returned. Must be in the form: ``projects/{project_id}``
             page_size (int): The maximum number of resources contained in the
                 underlying API response. If page streaming is performed per-
                 resource, this parameter does not affect the return value. If page
@@ -478,12 +478,12 @@ def create_transfer_config(
             >>> response = client.create_transfer_config(parent, transfer_config)
 
         Args:
-            parent (str): The BigQuery project id where the transfer configuration should be
-                created. Must be in the format
+            parent (str): Required. The BigQuery project id where the transfer configuration
+                should be created. Must be in the format
                 projects/{project\_id}/locations/{location\_id} If specified location
                 and location of the destination bigquery dataset do not match - the
                 request will fail.
-            transfer_config (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.TransferConfig]): Data transfer configuration to create.
+            transfer_config (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.TransferConfig]): Required. Data transfer configuration to create.
 
                 If a dict is provided, it must be of the same form as the protobuf
                 message :class:`~google.cloud.bigquery_datatransfer_v1.types.TransferConfig`
@@ -591,11 +591,11 @@ def update_transfer_config(
             >>> response = client.update_transfer_config(transfer_config, update_mask)
 
         Args:
-            transfer_config (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.TransferConfig]): Data transfer configuration to create.
+            transfer_config (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.TransferConfig]): Required. Data transfer configuration to create.
 
                 If a dict is provided, it must be of the same form as the protobuf
                 message :class:`~google.cloud.bigquery_datatransfer_v1.types.TransferConfig`
-            update_mask (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.FieldMask]): Required list of fields to be updated in this request.
+            update_mask (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.FieldMask]): Required. Required list of fields to be updated in this request.
 
                 If a dict is provided, it must be of the same form as the protobuf
                 message :class:`~google.cloud.bigquery_datatransfer_v1.types.FieldMask`
@@ -696,8 +696,8 @@ def delete_transfer_config(
             >>> client.delete_transfer_config(name)
 
         Args:
-            name (str): The field will contain name of the resource requested, for example:
-                ``projects/{project_id}/transferConfigs/{config_id}``
+            name (str): Required. The field will contain name of the resource requested, for
+                example: ``projects/{project_id}/transferConfigs/{config_id}``
             retry (Optional[google.api_core.retry.Retry]):  A retry object used
                 to retry requests. If ``None`` is specified, requests will
                 be retried using a default configuration.
@@ -763,8 +763,8 @@ def get_transfer_config(
             >>> response = client.get_transfer_config(name)
 
         Args:
-            name (str): The field will contain name of the resource requested, for example:
-                ``projects/{project_id}/transferConfigs/{config_id}``
+            name (str): Required. The field will contain name of the resource requested, for
+                example: ``projects/{project_id}/transferConfigs/{config_id}``
             retry (Optional[google.api_core.retry.Retry]):  A retry object used
                 to retry requests. If ``None`` is specified, requests will
                 be retried using a default configuration.
@@ -847,8 +847,8 @@ def list_transfer_configs(
             ...         pass
 
         Args:
-            parent (str): The BigQuery project id for which data sources should be returned:
-                ``projects/{project_id}``.
+            parent (str): Required. The BigQuery project id for which data sources should be
+                returned: ``projects/{project_id}``.
             data_source_ids (list[str]): When specified, only configurations of requested data sources are returned.
             page_size (int): The maximum number of resources contained in the
                 underlying API response. If page streaming is performed per-
@@ -950,14 +950,14 @@ def schedule_transfer_runs(
             >>> response = client.schedule_transfer_runs(parent, start_time, end_time)
 
         Args:
-            parent (str): Transfer configuration name in the form:
+            parent (str): Required. Transfer configuration name in the form:
                 ``projects/{project_id}/transferConfigs/{config_id}``.
-            start_time (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.Timestamp]): Start time of the range of transfer runs. For example,
+            start_time (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.Timestamp]): Required. Start time of the range of transfer runs. For example,
                 ``"2017-05-25T00:00:00+00:00"``.
 
                 If a dict is provided, it must be of the same form as the protobuf
                 message :class:`~google.cloud.bigquery_datatransfer_v1.types.Timestamp`
-            end_time (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.Timestamp]): End time of the range of transfer runs. For example,
+            end_time (Union[dict, ~google.cloud.bigquery_datatransfer_v1.types.Timestamp]): Required. End time of the range of transfer runs. For example,
                 ``"2017-05-30T00:00:00+00:00"``.
 
                 If a dict is provided, it must be of the same form as the protobuf
@@ -1032,7 +1032,8 @@ def get_transfer_run(
             >>> response = client.get_transfer_run(name)
 
         Args:
-            name (str): The field will contain name of the resource requested, for example:
+            name (str): Required. The field will contain name of the resource requested, for
+                example:
                 ``projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}``
             retry (Optional[google.api_core.retry.Retry]):  A retry object used
                 to retry requests. If ``None`` is specified, requests will
@@ -1102,7 +1103,8 @@ def delete_transfer_run(
             >>> client.delete_transfer_run(name)
 
         Args:
-            name (str): The field will contain name of the resource requested, for example:
+            name (str): Required. The field will contain name of the resource requested, for
+                example:
                 ``projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}``
             retry (Optional[google.api_core.retry.Retry]):  A retry object used
                 to retry requests. If ``None`` is specified, requests will
@@ -1184,8 +1186,8 @@ def list_transfer_runs(
             ...         pass
 
         Args:
-            parent (str): Name of transfer configuration for which transfer runs should be
-                retrieved. Format of transfer configuration resource name is:
+            parent (str): Required. Name of transfer configuration for which transfer runs should
+                be retrieved. Format of transfer configuration resource name is:
                 ``projects/{project_id}/transferConfigs/{config_id}``.
             states (list[~google.cloud.bigquery_datatransfer_v1.types.TransferState]): When specified, only transfer runs with requested states are returned.
             page_size (int): The maximum number of resources contained in the
@@ -1292,7 +1294,7 @@ def list_transfer_logs(
             ...         pass
 
         Args:
-            parent (str): Transfer run name in the form:
+            parent (str): Required. Transfer run name in the form:
                 ``projects/{project_id}/transferConfigs/{config_Id}/runs/{run_id}``.
             page_size (int): The maximum number of resources contained in the
                 underlying API response. If page streaming is performed per-
@@ -1390,7 +1392,7 @@ def check_valid_creds(
             >>> response = client.check_valid_creds(name)
 
         Args:
-            name (str): The data source in the form:
+            name (str): Required. The data source in the form:
                 ``projects/{project_id}/dataSources/{data_source_id}``
             retry (Optional[google.api_core.retry.Retry]):  A retry object used
                 to retry requests. If ``None`` is specified, requests will
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer.proto b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer.proto
index e9a39683494c..a464645b5ac3 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer.proto
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer.proto
@@ -18,13 +18,15 @@ syntax = "proto3";
 package google.cloud.bigquery.datatransfer.v1;
 
 import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
 import "google/cloud/bigquery/datatransfer/v1/transfer.proto";
 import "google/protobuf/duration.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
 import "google/protobuf/timestamp.proto";
 import "google/protobuf/wrappers.proto";
-import "google/api/client.proto";
 
 option csharp_namespace = "Google.Cloud.BigQuery.DataTransfer.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/bigquery/datatransfer/v1;datatransfer";
@@ -50,6 +52,7 @@ service DataTransferService {
         get: "/v1/{name=projects/*/dataSources/*}"
       }
     };
+    option (google.api.method_signature) = "name";
   }
 
   // Lists supported data sources and returns their settings,
@@ -61,6 +64,7 @@ service DataTransferService {
         get: "/v1/{parent=projects/*}/dataSources"
       }
     };
+    option (google.api.method_signature) = "parent";
   }
 
   // Creates a new data transfer configuration.
@@ -73,6 +77,7 @@ service DataTransferService {
         body: "transfer_config"
       }
     };
+    option (google.api.method_signature) = "parent,transfer_config";
   }
 
   // Updates a data transfer configuration.
@@ -86,6 +91,7 @@ service DataTransferService {
         body: "transfer_config"
       }
     };
+    option (google.api.method_signature) = "transfer_config,update_mask";
   }
 
   // Deletes a data transfer configuration,
@@ -97,6 +103,7 @@ service DataTransferService {
         delete: "/v1/{name=projects/*/transferConfigs/*}"
       }
     };
+    option (google.api.method_signature) = "name";
   }
 
   // Returns information about a data transfer config.
@@ -107,6 +114,7 @@ service DataTransferService {
         get: "/v1/{name=projects/*/transferConfigs/*}"
       }
     };
+    option (google.api.method_signature) = "name";
   }
 
   // Returns information about all data transfers in the project.
@@ -117,6 +125,7 @@ service DataTransferService {
         get: "/v1/{parent=projects/*}/transferConfigs"
       }
     };
+    option (google.api.method_signature) = "parent";
   }
 
   // Creates transfer runs for a time range [start_time, end_time].
@@ -134,6 +143,7 @@ service DataTransferService {
         body: "*"
       }
     };
+    option (google.api.method_signature) = "parent,start_time,end_time";
   }
 
   // Start manual transfer runs to be executed now with schedule_time equal to
@@ -159,6 +169,7 @@ service DataTransferService {
         get: "/v1/{name=projects/*/transferConfigs/*/runs/*}"
       }
     };
+    option (google.api.method_signature) = "name";
   }
 
   // Deletes the specified transfer run.
@@ -169,6 +180,7 @@ service DataTransferService {
         delete: "/v1/{name=projects/*/transferConfigs/*/runs/*}"
       }
     };
+    option (google.api.method_signature) = "name";
   }
 
   // Returns information about running and completed jobs.
@@ -179,6 +191,7 @@ service DataTransferService {
         get: "/v1/{parent=projects/*/transferConfigs/*}/runs"
       }
     };
+    option (google.api.method_signature) = "parent";
   }
 
   // Returns user facing log messages for the data transfer run.
@@ -189,6 +202,7 @@ service DataTransferService {
         get: "/v1/{parent=projects/*/transferConfigs/*/runs/*}/transferLogs"
       }
     };
+    option (google.api.method_signature) = "parent";
   }
 
   // Returns true if valid credentials exist for the given data source and
@@ -206,6 +220,7 @@ service DataTransferService {
         body: "*"
       }
     };
+    option (google.api.method_signature) = "name";
   }
 }
 
@@ -295,6 +310,11 @@ message DataSourceParameter {
 // Represents data source metadata. Metadata is sufficient to
 // render UI and request proper OAuth tokens.
 message DataSource {
+  option (google.api.resource) = {
+    type: "bigquerydatatransfer.googleapis.com/DataSource"
+    pattern: "projects/{project}/dataSources/{data_source}"
+  };
+
   // The type of authorization needed for this data source.
   enum AuthorizationType {
     // Type unspecified.
@@ -326,7 +346,7 @@ message DataSource {
   }
 
   // Output only. Data source resource name.
-  string name = 1;
+  string name = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Data source id.
   string data_source_id = 2;
@@ -396,16 +416,26 @@ message DataSource {
 
 // A request to get data source info.
 message GetDataSourceRequest {
-  // The field will contain name of the resource requested, for example:
+  // Required. The field will contain name of the resource requested, for example:
   // `projects/{project_id}/dataSources/{data_source_id}`
-  string name = 1;
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/DataSource"
+    }
+  ];
 }
 
 // Request to list supported data sources and their data transfer settings.
 message ListDataSourcesRequest {
-  // The BigQuery project id for which data sources should be returned.
+  // Required. The BigQuery project id for which data sources should be returned.
   // Must be in the form: `projects/{project_id}`
-  string parent = 1;
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "cloudresourcemanager.googleapis.com/Project"
+    }
+  ];
 
   // Pagination token, which can be used to request a specific page
   // of `ListDataSourcesRequest` list results. For multiple-page
@@ -427,7 +457,7 @@ message ListDataSourcesResponse {
   // this token can be used as the
   // `ListDataSourcesRequest.page_token`
   // to request the next page of list results.
-  string next_page_token = 2;
+  string next_page_token = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // A request to create a data transfer configuration. If new credentials are
@@ -437,14 +467,19 @@ message ListDataSourcesResponse {
 // authorization code. Otherwise, the transfer configuration will be associated
 // with the calling user.
 message CreateTransferConfigRequest {
-  // The BigQuery project id where the transfer configuration should be created.
+  // Required. The BigQuery project id where the transfer configuration should be created.
   // Must be in the format projects/{project_id}/locations/{location_id}
   // If specified location and location of the destination bigquery dataset
   // do not match - the request will fail.
-  string parent = 1;
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "locations.googleapis.com/Location"
+    }
+  ];
 
-  // Data transfer configuration to create.
-  TransferConfig transfer_config = 2;
+  // Required. Data transfer configuration to create.
+  TransferConfig transfer_config = 2 [(google.api.field_behavior) = REQUIRED];
 
   // Optional OAuth2 authorization code to use with this transfer configuration.
   // This is required if new credentials are needed, as indicated by
@@ -476,8 +511,8 @@ message CreateTransferConfigRequest {
 // A request to update a transfer configuration. To update the user id of the
 // transfer configuration, an authorization code needs to be provided.
 message UpdateTransferConfigRequest {
-  // Data transfer configuration to create.
-  TransferConfig transfer_config = 1;
+  // Required. Data transfer configuration to create.
+  TransferConfig transfer_config = 1 [(google.api.field_behavior) = REQUIRED];
 
   // Optional OAuth2 authorization code to use with this transfer configuration.
   // If it is provided, the transfer configuration will be associated with the
@@ -497,8 +532,8 @@ message UpdateTransferConfigRequest {
   //   the user to copy the code and paste it in the application.
   string authorization_code = 3;
 
-  // Required list of fields to be updated in this request.
-  google.protobuf.FieldMask update_mask = 4;
+  // Required. Required list of fields to be updated in this request.
+  google.protobuf.FieldMask update_mask = 4 [(google.api.field_behavior) = REQUIRED];
 
   // Optional version info. If users want to find a very recent access token,
   // that is, immediately after approving access, users have to set the
@@ -511,38 +546,63 @@ message UpdateTransferConfigRequest {
 
 // A request to get data transfer information.
 message GetTransferConfigRequest {
-  // The field will contain name of the resource requested, for example:
+  // Required. The field will contain name of the resource requested, for example:
   // `projects/{project_id}/transferConfigs/{config_id}`
-  string name = 1;
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/TransferConfig"
+    }
+  ];
 }
 
 // A request to delete data transfer information. All associated transfer runs
 // and log messages will be deleted as well.
 message DeleteTransferConfigRequest {
-  // The field will contain name of the resource requested, for example:
+  // Required. The field will contain name of the resource requested, for example:
   // `projects/{project_id}/transferConfigs/{config_id}`
-  string name = 1;
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/TransferConfig"
+    }
+  ];
 }
 
 // A request to get data transfer run information.
 message GetTransferRunRequest {
-  // The field will contain name of the resource requested, for example:
+  // Required. The field will contain name of the resource requested, for example:
   // `projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}`
-  string name = 1;
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/TransferRun"
+    }
+  ];
 }
 
 // A request to delete data transfer run information.
 message DeleteTransferRunRequest {
-  // The field will contain name of the resource requested, for example:
+  // Required. The field will contain name of the resource requested, for example:
   // `projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}`
-  string name = 1;
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/TransferRun"
+    }
+  ];
 }
 
 // A request to list data transfers configured for a BigQuery project.
 message ListTransferConfigsRequest {
-  // The BigQuery project id for which data sources
+  // Required. The BigQuery project id for which data sources
   // should be returned: `projects/{project_id}`.
-  string parent = 1;
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "cloudresourcemanager.googleapis.com/Project"
+    }
+  ];
 
   // When specified, only configurations of requested data sources are returned.
   repeated string data_source_ids = 2;
@@ -561,13 +621,13 @@ message ListTransferConfigsRequest {
 // The returned list of pipelines in the project.
 message ListTransferConfigsResponse {
   // Output only. The stored pipeline transfer configurations.
-  repeated TransferConfig transfer_configs = 1;
+  repeated TransferConfig transfer_configs = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The next-pagination token. For multiple-page list results,
   // this token can be used as the
   // `ListTransferConfigsRequest.page_token`
   // to request the next page of list results.
-  string next_page_token = 2;
+  string next_page_token = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // A request to list data transfer runs. UI can use this method to show/filter
@@ -583,10 +643,15 @@ message ListTransferRunsRequest {
     LATEST = 1;
   }
 
-  // Name of transfer configuration for which transfer runs should be retrieved.
+  // Required. Name of transfer configuration for which transfer runs should be retrieved.
   // Format of transfer configuration resource name is:
   // `projects/{project_id}/transferConfigs/{config_id}`.
-  string parent = 1;
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/TransferConfig"
+    }
+  ];
 
   // When specified, only transfer runs with requested states are returned.
   repeated TransferState states = 2;
@@ -608,20 +673,25 @@ message ListTransferRunsRequest {
 // The returned list of pipelines in the project.
 message ListTransferRunsResponse {
   // Output only. The stored pipeline transfer runs.
-  repeated TransferRun transfer_runs = 1;
+  repeated TransferRun transfer_runs = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The next-pagination token. For multiple-page list results,
   // this token can be used as the
   // `ListTransferRunsRequest.page_token`
   // to request the next page of list results.
-  string next_page_token = 2;
+  string next_page_token = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // A request to get user facing log messages associated with data transfer run.
 message ListTransferLogsRequest {
-  // Transfer run name in the form:
+  // Required. Transfer run name in the form:
   // `projects/{project_id}/transferConfigs/{config_Id}/runs/{run_id}`.
-  string parent = 1;
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/TransferRun"
+    }
+  ];
 
   // Pagination token, which can be used to request a specific page
   // of `ListTransferLogsRequest` list results. For multiple-page
@@ -641,13 +711,13 @@ message ListTransferLogsRequest {
 // The returned list transfer run messages.
 message ListTransferLogsResponse {
   // Output only. The stored pipeline transfer messages.
-  repeated TransferMessage transfer_messages = 1;
+  repeated TransferMessage transfer_messages = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The next-pagination token. For multiple-page list results,
   // this token can be used as the
   // `GetTransferRunLogRequest.page_token`
   // to request the next page of list results.
-  string next_page_token = 2;
+  string next_page_token = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // A request to determine whether the user has valid credentials. This method
@@ -657,9 +727,14 @@ message ListTransferLogsResponse {
 // returns false, as it cannot be determined whether the credentials are
 // already valid merely based on the user id.
 message CheckValidCredsRequest {
-  // The data source in the form:
+  // Required. The data source in the form:
   // `projects/{project_id}/dataSources/{data_source_id}`
-  string name = 1;
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/DataSource"
+    }
+  ];
 }
 
 // A response indicating whether the credentials exist and are valid.
@@ -670,17 +745,22 @@ message CheckValidCredsResponse {
 
 // A request to schedule transfer runs for a time range.
 message ScheduleTransferRunsRequest {
-  // Transfer configuration name in the form:
+  // Required. Transfer configuration name in the form:
   // `projects/{project_id}/transferConfigs/{config_id}`.
-  string parent = 1;
-
-  // Start time of the range of transfer runs. For example,
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigquerydatatransfer.googleapis.com/TransferConfig"
+    }
+  ];
+
+  // Required. Start time of the range of transfer runs. For example,
   // `"2017-05-25T00:00:00+00:00"`.
-  google.protobuf.Timestamp start_time = 2;
+  google.protobuf.Timestamp start_time = 2 [(google.api.field_behavior) = REQUIRED];
 
-  // End time of the range of transfer runs. For example,
+  // Required. End time of the range of transfer runs. For example,
   // `"2017-05-30T00:00:00+00:00"`.
-  google.protobuf.Timestamp end_time = 3;
+  google.protobuf.Timestamp end_time = 3 [(google.api.field_behavior) = REQUIRED];
 }
 
 // A response to schedule transfer runs for a time range.
@@ -709,7 +789,9 @@ message StartManualTransferRunsRequest {
 
   // Transfer configuration name in the form:
   // `projects/{project_id}/transferConfigs/{config_id}`.
-  string parent = 1;
+  string parent = 1 [(google.api.resource_reference) = {
+                       type: "bigquerydatatransfer.googleapis.com/TransferConfig"
+                     }];
 
   // The requested time specification - this can be a time range or a specific
   // run_time.
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2.py
index 55338100718e..a70a55e3df79 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/datatransfer_pb2.py
@@ -16,6 +16,9 @@
 
 
 from google.api import annotations_pb2 as google_dot_api_dot_annotations__pb2
+from google.api import client_pb2 as google_dot_api_dot_client__pb2
+from google.api import field_behavior_pb2 as google_dot_api_dot_field__behavior__pb2
+from google.api import resource_pb2 as google_dot_api_dot_resource__pb2
 from google.cloud.bigquery_datatransfer_v1.proto import (
     transfer_pb2 as google_dot_cloud_dot_bigquery_dot_datatransfer__v1_dot_proto_dot_transfer__pb2,
 )
@@ -24,7 +27,6 @@
 from google.protobuf import field_mask_pb2 as google_dot_protobuf_dot_field__mask__pb2
 from google.protobuf import timestamp_pb2 as google_dot_protobuf_dot_timestamp__pb2
 from google.protobuf import wrappers_pb2 as google_dot_protobuf_dot_wrappers__pb2
-from google.api import client_pb2 as google_dot_api_dot_client__pb2
 
 
 DESCRIPTOR = _descriptor.FileDescriptor(
@@ -35,17 +37,19 @@
         "\n)com.google.cloud.bigquery.datatransfer.v1B\021DataTransferProtoP\001ZQgoogle.golang.org/genproto/googleapis/cloud/bigquery/datatransfer/v1;datatransfer\252\002%Google.Cloud.BigQuery.DataTransfer.V1\312\002%Google\\Cloud\\BigQuery\\DataTransfer\\V1"
     ),
     serialized_pb=_b(
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     ),
     dependencies=[
         google_dot_api_dot_annotations__pb2.DESCRIPTOR,
+        google_dot_api_dot_client__pb2.DESCRIPTOR,
+        google_dot_api_dot_field__behavior__pb2.DESCRIPTOR,
+        google_dot_api_dot_resource__pb2.DESCRIPTOR,
         google_dot_cloud_dot_bigquery_dot_datatransfer__v1_dot_proto_dot_transfer__pb2.DESCRIPTOR,
         google_dot_protobuf_dot_duration__pb2.DESCRIPTOR,
         google_dot_protobuf_dot_empty__pb2.DESCRIPTOR,
         google_dot_protobuf_dot_field__mask__pb2.DESCRIPTOR,
         google_dot_protobuf_dot_timestamp__pb2.DESCRIPTOR,
         google_dot_protobuf_dot_wrappers__pb2.DESCRIPTOR,
-        google_dot_api_dot_client__pb2.DESCRIPTOR,
     ],
 )
 
@@ -84,8 +88,8 @@
     ],
     containing_type=None,
     serialized_options=None,
-    serialized_start=921,
-    serialized_end=1026,
+    serialized_start=981,
+    serialized_end=1086,
 )
 _sym_db.RegisterEnumDescriptor(_DATASOURCEPARAMETER_TYPE)
 
@@ -119,8 +123,8 @@
     ],
     containing_type=None,
     serialized_options=None,
-    serialized_start=1796,
-    serialized_end=1911,
+    serialized_start=1861,
+    serialized_end=1976,
 )
 _sym_db.RegisterEnumDescriptor(_DATASOURCE_AUTHORIZATIONTYPE)
 
@@ -150,8 +154,8 @@
     ],
     containing_type=None,
     serialized_options=None,
-    serialized_start=1913,
-    serialized_end=2012,
+    serialized_start=1978,
+    serialized_end=2077,
 )
 _sym_db.RegisterEnumDescriptor(_DATASOURCE_DATAREFRESHTYPE)
 
@@ -174,8 +178,8 @@
     ],
     containing_type=None,
     serialized_options=None,
-    serialized_start=3312,
-    serialized_end=3365,
+    serialized_start=4008,
+    serialized_end=4061,
 )
 _sym_db.RegisterEnumDescriptor(_LISTTRANSFERRUNSREQUEST_RUNATTEMPT)
 
@@ -484,8 +488,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=381,
-    serialized_end=1026,
+    serialized_start=441,
+    serialized_end=1086,
 )
 
 
@@ -511,7 +515,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -824,13 +828,15 @@
     extensions=[],
     nested_types=[],
     enum_types=[_DATASOURCE_AUTHORIZATIONTYPE, _DATASOURCE_DATAREFRESHTYPE],
-    serialized_options=None,
+    serialized_options=_b(
+        "\352A^\n.bigquerydatatransfer.googleapis.com/DataSource\022,projects/{project}/dataSources/{data_source}"
+    ),
     is_extendable=False,
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=1029,
-    serialized_end=2012,
+    serialized_start=1089,
+    serialized_end=2176,
 )
 
 
@@ -856,7 +862,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A0\n.bigquerydatatransfer.googleapis.com/DataSource"
+            ),
             file=DESCRIPTOR,
         )
     ],
@@ -868,8 +876,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2014,
-    serialized_end=2050,
+    serialized_start=2178,
+    serialized_end=2270,
 )
 
 
@@ -895,7 +903,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A-\n+cloudresourcemanager.googleapis.com/Project"
+            ),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -943,8 +953,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2052,
-    serialized_end=2131,
+    serialized_start=2273,
+    serialized_end=2405,
 )
 
 
@@ -988,7 +998,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
     ],
@@ -1000,8 +1010,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2133,
-    serialized_end=2256,
+    serialized_start=2408,
+    serialized_end=2536,
 )
 
 
@@ -1027,7 +1037,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A#\n!locations.googleapis.com/Location"
+            ),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1045,7 +1057,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\002"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1093,8 +1105,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2259,
-    serialized_end=2434,
+    serialized_start=2539,
+    serialized_end=2762,
 )
 
 
@@ -1120,7 +1132,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\002"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1156,7 +1168,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\002"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1186,8 +1198,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2437,
-    serialized_end=2645,
+    serialized_start=2765,
+    serialized_end=2983,
 )
 
 
@@ -1213,7 +1225,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A4\n2bigquerydatatransfer.googleapis.com/TransferConfig"
+            ),
             file=DESCRIPTOR,
         )
     ],
@@ -1225,8 +1239,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2647,
-    serialized_end=2687,
+    serialized_start=2985,
+    serialized_end=3085,
 )
 
 
@@ -1252,7 +1266,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A4\n2bigquerydatatransfer.googleapis.com/TransferConfig"
+            ),
             file=DESCRIPTOR,
         )
     ],
@@ -1264,8 +1280,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2689,
-    serialized_end=2732,
+    serialized_start=3087,
+    serialized_end=3190,
 )
 
 
@@ -1291,7 +1307,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A1\n/bigquerydatatransfer.googleapis.com/TransferRun"
+            ),
             file=DESCRIPTOR,
         )
     ],
@@ -1303,8 +1321,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2734,
-    serialized_end=2771,
+    serialized_start=3192,
+    serialized_end=3286,
 )
 
 
@@ -1330,7 +1348,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A1\n/bigquerydatatransfer.googleapis.com/TransferRun"
+            ),
             file=DESCRIPTOR,
         )
     ],
@@ -1342,8 +1362,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2773,
-    serialized_end=2813,
+    serialized_start=3288,
+    serialized_end=3385,
 )
 
 
@@ -1369,7 +1389,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A-\n+cloudresourcemanager.googleapis.com/Project"
+            ),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1435,8 +1457,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2815,
-    serialized_end=2923,
+    serialized_start=3388,
+    serialized_end=3549,
 )
 
 
@@ -1462,7 +1484,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1480,7 +1502,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
     ],
@@ -1492,8 +1514,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=2926,
-    serialized_end=3061,
+    serialized_start=3552,
+    serialized_end=3697,
 )
 
 
@@ -1519,7 +1541,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A4\n2bigquerydatatransfer.googleapis.com/TransferConfig"
+            ),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1603,8 +1627,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=3064,
-    serialized_end=3365,
+    serialized_start=3700,
+    serialized_end=4061,
 )
 
 
@@ -1630,7 +1654,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1648,7 +1672,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
     ],
@@ -1660,8 +1684,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=3367,
-    serialized_end=3493,
+    serialized_start=4064,
+    serialized_end=4200,
 )
 
 
@@ -1687,7 +1711,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A1\n/bigquerydatatransfer.googleapis.com/TransferRun"
+            ),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1753,8 +1779,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=3496,
-    serialized_end=3671,
+    serialized_start=4203,
+    serialized_end=4435,
 )
 
 
@@ -1780,7 +1806,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1798,7 +1824,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
     ],
@@ -1810,8 +1836,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=3674,
-    serialized_end=3808,
+    serialized_start=4438,
+    serialized_end=4582,
 )
 
 
@@ -1837,7 +1863,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A0\n.bigquerydatatransfer.googleapis.com/DataSource"
+            ),
             file=DESCRIPTOR,
         )
     ],
@@ -1849,8 +1877,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=3810,
-    serialized_end=3848,
+    serialized_start=4584,
+    serialized_end=4678,
 )
 
 
@@ -1888,8 +1916,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=3850,
-    serialized_end=3900,
+    serialized_start=4680,
+    serialized_end=4730,
 )
 
 
@@ -1915,7 +1943,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\340A\002\372A4\n2bigquerydatatransfer.googleapis.com/TransferConfig"
+            ),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1933,7 +1963,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\002"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -1951,7 +1981,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\002"),
             file=DESCRIPTOR,
         ),
     ],
@@ -1963,8 +1993,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=3903,
-    serialized_end=4042,
+    serialized_start=4733,
+    serialized_end=4942,
 )
 
 
@@ -2002,8 +2032,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=4044,
-    serialized_end=4140,
+    serialized_start=4944,
+    serialized_end=5040,
 )
 
 
@@ -2059,8 +2089,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=4364,
-    serialized_end=4469,
+    serialized_start=5321,
+    serialized_end=5426,
 )
 
 _STARTMANUALTRANSFERRUNSREQUEST = _descriptor.Descriptor(
@@ -2085,7 +2115,9 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b(
+                "\372A4\n2bigquerydatatransfer.googleapis.com/TransferConfig"
+            ),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -2141,8 +2173,8 @@
             fields=[],
         )
     ],
-    serialized_start=4143,
-    serialized_end=4477,
+    serialized_start=5043,
+    serialized_end=5434,
 )
 
 
@@ -2180,8 +2212,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=4479,
-    serialized_end=4578,
+    serialized_start=5436,
+    serialized_end=5535,
 )
 
 _DATASOURCEPARAMETER.fields_by_name["type"].enum_type = _DATASOURCEPARAMETER_TYPE
@@ -2473,8 +2505,8 @@
   
   Attributes:
       name:
-          The field will contain name of the resource requested, for
-          example:
+          Required. The field will contain name of the resource
+          requested, for example:
           ``projects/{project_id}/dataSources/{data_source_id}``
   """,
         # @@protoc_insertion_point(class_scope:google.cloud.bigquery.datatransfer.v1.GetDataSourceRequest)
@@ -2493,8 +2525,9 @@
   
   Attributes:
       parent:
-          The BigQuery project id for which data sources should be
-          returned. Must be in the form: ``projects/{project_id}``
+          Required. The BigQuery project id for which data sources
+          should be returned. Must be in the form:
+          ``projects/{project_id}``
       page_token:
           Pagination token, which can be used to request a specific page
           of ``ListDataSourcesRequest`` list results. For multiple-page
@@ -2549,13 +2582,13 @@
   
   Attributes:
       parent:
-          The BigQuery project id where the transfer configuration
-          should be created. Must be in the format
+          Required. The BigQuery project id where the transfer
+          configuration should be created. Must be in the format
           projects/{project\_id}/locations/{location\_id} If specified
           location and location of the destination bigquery dataset do
           not match - the request will fail.
       transfer_config:
-          Data transfer configuration to create.
+          Required. Data transfer configuration to create.
       authorization_code:
           Optional OAuth2 authorization code to use with this transfer
           configuration. This is required if new credentials are needed,
@@ -2599,7 +2632,7 @@
   
   Attributes:
       transfer_config:
-          Data transfer configuration to create.
+          Required. Data transfer configuration to create.
       authorization_code:
           Optional OAuth2 authorization code to use with this transfer
           configuration. If it is provided, the transfer configuration
@@ -2618,7 +2651,8 @@
           with the page    text prompting the user to copy the code and
           paste it in the    application.
       update_mask:
-          Required list of fields to be updated in this request.
+          Required. Required list of fields to be updated in this
+          request.
       version_info:
           Optional version info. If users want to find a very recent
           access token, that is, immediately after approving access,
@@ -2644,8 +2678,9 @@
   
   Attributes:
       name:
-          The field will contain name of the resource requested, for
-          example: ``projects/{project_id}/transferConfigs/{config_id}``
+          Required. The field will contain name of the resource
+          requested, for example:
+          ``projects/{project_id}/transferConfigs/{config_id}``
   """,
         # @@protoc_insertion_point(class_scope:google.cloud.bigquery.datatransfer.v1.GetTransferConfigRequest)
     ),
@@ -2664,8 +2699,9 @@
   
   Attributes:
       name:
-          The field will contain name of the resource requested, for
-          example: ``projects/{project_id}/transferConfigs/{config_id}``
+          Required. The field will contain name of the resource
+          requested, for example:
+          ``projects/{project_id}/transferConfigs/{config_id}``
   """,
         # @@protoc_insertion_point(class_scope:google.cloud.bigquery.datatransfer.v1.DeleteTransferConfigRequest)
     ),
@@ -2683,9 +2719,9 @@
   
   Attributes:
       name:
-          The field will contain name of the resource requested, for
-          example: ``projects/{project_id}/transferConfigs/{config_id}/r
-          uns/{run_id}``
+          Required. The field will contain name of the resource
+          requested, for example: ``projects/{project_id}/transferConfig
+          s/{config_id}/runs/{run_id}``
   """,
         # @@protoc_insertion_point(class_scope:google.cloud.bigquery.datatransfer.v1.GetTransferRunRequest)
     ),
@@ -2703,9 +2739,9 @@
   
   Attributes:
       name:
-          The field will contain name of the resource requested, for
-          example: ``projects/{project_id}/transferConfigs/{config_id}/r
-          uns/{run_id}``
+          Required. The field will contain name of the resource
+          requested, for example: ``projects/{project_id}/transferConfig
+          s/{config_id}/runs/{run_id}``
   """,
         # @@protoc_insertion_point(class_scope:google.cloud.bigquery.datatransfer.v1.DeleteTransferRunRequest)
     ),
@@ -2723,8 +2759,8 @@
   
   Attributes:
       parent:
-          The BigQuery project id for which data sources should be
-          returned: ``projects/{project_id}``.
+          Required. The BigQuery project id for which data sources
+          should be returned: ``projects/{project_id}``.
       data_source_ids:
           When specified, only configurations of requested data sources
           are returned.
@@ -2779,9 +2815,10 @@
   
   Attributes:
       parent:
-          Name of transfer configuration for which transfer runs should
-          be retrieved. Format of transfer configuration resource name
-          is: ``projects/{project_id}/transferConfigs/{config_id}``.
+          Required. Name of transfer configuration for which transfer
+          runs should be retrieved. Format of transfer configuration
+          resource name is:
+          ``projects/{project_id}/transferConfigs/{config_id}``.
       states:
           When specified, only transfer runs with requested states are
           returned.
@@ -2837,8 +2874,8 @@
   
   Attributes:
       parent:
-          Transfer run name in the form: ``projects/{project_id}/transfe
-          rConfigs/{config_Id}/runs/{run_id}``.
+          Required. Transfer run name in the form: ``projects/{project_i
+          d}/transferConfigs/{config_Id}/runs/{run_id}``.
       page_token:
           Pagination token, which can be used to request a specific page
           of ``ListTransferLogsRequest`` list results. For multiple-page
@@ -2896,7 +2933,7 @@
   
   Attributes:
       name:
-          The data source in the form:
+          Required. The data source in the form:
           ``projects/{project_id}/dataSources/{data_source_id}``
   """,
         # @@protoc_insertion_point(class_scope:google.cloud.bigquery.datatransfer.v1.CheckValidCredsRequest)
@@ -2933,13 +2970,13 @@
   
   Attributes:
       parent:
-          Transfer configuration name in the form:
+          Required. Transfer configuration name in the form:
           ``projects/{project_id}/transferConfigs/{config_id}``.
       start_time:
-          Start time of the range of transfer runs. For example,
-          ``"2017-05-25T00:00:00+00:00"``.
+          Required. Start time of the range of transfer runs. For
+          example, ``"2017-05-25T00:00:00+00:00"``.
       end_time:
-          End time of the range of transfer runs. For example,
+          Required. End time of the range of transfer runs. For example,
           ``"2017-05-30T00:00:00+00:00"``.
   """,
         # @@protoc_insertion_point(class_scope:google.cloud.bigquery.datatransfer.v1.ScheduleTransferRunsRequest)
@@ -3039,8 +3076,35 @@
 
 
 DESCRIPTOR._options = None
+_DATASOURCE.fields_by_name["name"]._options = None
 _DATASOURCE.fields_by_name["transfer_type"]._options = None
 _DATASOURCE.fields_by_name["supports_multiple_transfers"]._options = None
+_DATASOURCE._options = None
+_GETDATASOURCEREQUEST.fields_by_name["name"]._options = None
+_LISTDATASOURCESREQUEST.fields_by_name["parent"]._options = None
+_LISTDATASOURCESRESPONSE.fields_by_name["next_page_token"]._options = None
+_CREATETRANSFERCONFIGREQUEST.fields_by_name["parent"]._options = None
+_CREATETRANSFERCONFIGREQUEST.fields_by_name["transfer_config"]._options = None
+_UPDATETRANSFERCONFIGREQUEST.fields_by_name["transfer_config"]._options = None
+_UPDATETRANSFERCONFIGREQUEST.fields_by_name["update_mask"]._options = None
+_GETTRANSFERCONFIGREQUEST.fields_by_name["name"]._options = None
+_DELETETRANSFERCONFIGREQUEST.fields_by_name["name"]._options = None
+_GETTRANSFERRUNREQUEST.fields_by_name["name"]._options = None
+_DELETETRANSFERRUNREQUEST.fields_by_name["name"]._options = None
+_LISTTRANSFERCONFIGSREQUEST.fields_by_name["parent"]._options = None
+_LISTTRANSFERCONFIGSRESPONSE.fields_by_name["transfer_configs"]._options = None
+_LISTTRANSFERCONFIGSRESPONSE.fields_by_name["next_page_token"]._options = None
+_LISTTRANSFERRUNSREQUEST.fields_by_name["parent"]._options = None
+_LISTTRANSFERRUNSRESPONSE.fields_by_name["transfer_runs"]._options = None
+_LISTTRANSFERRUNSRESPONSE.fields_by_name["next_page_token"]._options = None
+_LISTTRANSFERLOGSREQUEST.fields_by_name["parent"]._options = None
+_LISTTRANSFERLOGSRESPONSE.fields_by_name["transfer_messages"]._options = None
+_LISTTRANSFERLOGSRESPONSE.fields_by_name["next_page_token"]._options = None
+_CHECKVALIDCREDSREQUEST.fields_by_name["name"]._options = None
+_SCHEDULETRANSFERRUNSREQUEST.fields_by_name["parent"]._options = None
+_SCHEDULETRANSFERRUNSREQUEST.fields_by_name["start_time"]._options = None
+_SCHEDULETRANSFERRUNSREQUEST.fields_by_name["end_time"]._options = None
+_STARTMANUALTRANSFERRUNSREQUEST.fields_by_name["parent"]._options = None
 
 _DATATRANSFERSERVICE = _descriptor.ServiceDescriptor(
     name="DataTransferService",
@@ -3050,8 +3114,8 @@
     serialized_options=_b(
         "\312A#bigquerydatatransfer.googleapis.com\322A.https://www.googleapis.com/auth/cloud-platform"
     ),
-    serialized_start=4581,
-    serialized_end=8454,
+    serialized_start=5538,
+    serialized_end=9573,
     methods=[
         _descriptor.MethodDescriptor(
             name="GetDataSource",
@@ -3061,7 +3125,7 @@
             input_type=_GETDATASOURCEREQUEST,
             output_type=_DATASOURCE,
             serialized_options=_b(
-                "\202\323\344\223\002X\022//v1/{name=projects/*/locations/*/dataSources/*}Z%\022#/v1/{name=projects/*/dataSources/*}"
+                "\202\323\344\223\002X\022//v1/{name=projects/*/locations/*/dataSources/*}Z%\022#/v1/{name=projects/*/dataSources/*}\332A\004name"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3072,7 +3136,7 @@
             input_type=_LISTDATASOURCESREQUEST,
             output_type=_LISTDATASOURCESRESPONSE,
             serialized_options=_b(
-                "\202\323\344\223\002X\022//v1/{parent=projects/*/locations/*}/dataSourcesZ%\022#/v1/{parent=projects/*}/dataSources"
+                "\202\323\344\223\002X\022//v1/{parent=projects/*/locations/*}/dataSourcesZ%\022#/v1/{parent=projects/*}/dataSources\332A\006parent"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3083,7 +3147,7 @@
             input_type=_CREATETRANSFERCONFIGREQUEST,
             output_type=google_dot_cloud_dot_bigquery_dot_datatransfer__v1_dot_proto_dot_transfer__pb2._TRANSFERCONFIG,
             serialized_options=_b(
-                '\202\323\344\223\002\202\001"3/v1/{parent=projects/*/locations/*}/transferConfigs:\017transfer_configZ:"\'/v1/{parent=projects/*}/transferConfigs:\017transfer_config'
+                '\202\323\344\223\002\202\001"3/v1/{parent=projects/*/locations/*}/transferConfigs:\017transfer_configZ:"\'/v1/{parent=projects/*}/transferConfigs:\017transfer_config\332A\026parent,transfer_config'
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3094,7 +3158,7 @@
             input_type=_UPDATETRANSFERCONFIGREQUEST,
             output_type=google_dot_cloud_dot_bigquery_dot_datatransfer__v1_dot_proto_dot_transfer__pb2._TRANSFERCONFIG,
             serialized_options=_b(
-                "\202\323\344\223\002\242\0012C/v1/{transfer_config.name=projects/*/locations/*/transferConfigs/*}:\017transfer_configZJ27/v1/{transfer_config.name=projects/*/transferConfigs/*}:\017transfer_config"
+                "\202\323\344\223\002\242\0012C/v1/{transfer_config.name=projects/*/locations/*/transferConfigs/*}:\017transfer_configZJ27/v1/{transfer_config.name=projects/*/transferConfigs/*}:\017transfer_config\332A\033transfer_config,update_mask"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3105,7 +3169,7 @@
             input_type=_DELETETRANSFERCONFIGREQUEST,
             output_type=google_dot_protobuf_dot_empty__pb2._EMPTY,
             serialized_options=_b(
-                "\202\323\344\223\002`*3/v1/{name=projects/*/locations/*/transferConfigs/*}Z)*'/v1/{name=projects/*/transferConfigs/*}"
+                "\202\323\344\223\002`*3/v1/{name=projects/*/locations/*/transferConfigs/*}Z)*'/v1/{name=projects/*/transferConfigs/*}\332A\004name"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3116,7 +3180,7 @@
             input_type=_GETTRANSFERCONFIGREQUEST,
             output_type=google_dot_cloud_dot_bigquery_dot_datatransfer__v1_dot_proto_dot_transfer__pb2._TRANSFERCONFIG,
             serialized_options=_b(
-                "\202\323\344\223\002`\0223/v1/{name=projects/*/locations/*/transferConfigs/*}Z)\022'/v1/{name=projects/*/transferConfigs/*}"
+                "\202\323\344\223\002`\0223/v1/{name=projects/*/locations/*/transferConfigs/*}Z)\022'/v1/{name=projects/*/transferConfigs/*}\332A\004name"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3127,7 +3191,7 @@
             input_type=_LISTTRANSFERCONFIGSREQUEST,
             output_type=_LISTTRANSFERCONFIGSRESPONSE,
             serialized_options=_b(
-                "\202\323\344\223\002`\0223/v1/{parent=projects/*/locations/*}/transferConfigsZ)\022'/v1/{parent=projects/*}/transferConfigs"
+                "\202\323\344\223\002`\0223/v1/{parent=projects/*/locations/*}/transferConfigsZ)\022'/v1/{parent=projects/*}/transferConfigs\332A\006parent"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3138,7 +3202,7 @@
             input_type=_SCHEDULETRANSFERRUNSREQUEST,
             output_type=_SCHEDULETRANSFERRUNSRESPONSE,
             serialized_options=_b(
-                '\210\002\001\202\323\344\223\002\204\001"B/v1/{parent=projects/*/locations/*/transferConfigs/*}:scheduleRuns:\001*Z;"6/v1/{parent=projects/*/transferConfigs/*}:scheduleRuns:\001*'
+                '\210\002\001\202\323\344\223\002\204\001"B/v1/{parent=projects/*/locations/*/transferConfigs/*}:scheduleRuns:\001*Z;"6/v1/{parent=projects/*/transferConfigs/*}:scheduleRuns:\001*\332A\032parent,start_time,end_time'
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3160,7 +3224,7 @@
             input_type=_GETTRANSFERRUNREQUEST,
             output_type=google_dot_cloud_dot_bigquery_dot_datatransfer__v1_dot_proto_dot_transfer__pb2._TRANSFERRUN,
             serialized_options=_b(
-                "\202\323\344\223\002n\022:/v1/{name=projects/*/locations/*/transferConfigs/*/runs/*}Z0\022./v1/{name=projects/*/transferConfigs/*/runs/*}"
+                "\202\323\344\223\002n\022:/v1/{name=projects/*/locations/*/transferConfigs/*/runs/*}Z0\022./v1/{name=projects/*/transferConfigs/*/runs/*}\332A\004name"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3171,7 +3235,7 @@
             input_type=_DELETETRANSFERRUNREQUEST,
             output_type=google_dot_protobuf_dot_empty__pb2._EMPTY,
             serialized_options=_b(
-                "\202\323\344\223\002n*:/v1/{name=projects/*/locations/*/transferConfigs/*/runs/*}Z0*./v1/{name=projects/*/transferConfigs/*/runs/*}"
+                "\202\323\344\223\002n*:/v1/{name=projects/*/locations/*/transferConfigs/*/runs/*}Z0*./v1/{name=projects/*/transferConfigs/*/runs/*}\332A\004name"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3182,7 +3246,7 @@
             input_type=_LISTTRANSFERRUNSREQUEST,
             output_type=_LISTTRANSFERRUNSRESPONSE,
             serialized_options=_b(
-                "\202\323\344\223\002n\022:/v1/{parent=projects/*/locations/*/transferConfigs/*}/runsZ0\022./v1/{parent=projects/*/transferConfigs/*}/runs"
+                "\202\323\344\223\002n\022:/v1/{parent=projects/*/locations/*/transferConfigs/*}/runsZ0\022./v1/{parent=projects/*/transferConfigs/*}/runs\332A\006parent"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3193,7 +3257,7 @@
             input_type=_LISTTRANSFERLOGSREQUEST,
             output_type=_LISTTRANSFERLOGSRESPONSE,
             serialized_options=_b(
-                "\202\323\344\223\002\214\001\022I/v1/{parent=projects/*/locations/*/transferConfigs/*/runs/*}/transferLogsZ?\022=/v1/{parent=projects/*/transferConfigs/*/runs/*}/transferLogs"
+                "\202\323\344\223\002\214\001\022I/v1/{parent=projects/*/locations/*/transferConfigs/*/runs/*}/transferLogsZ?\022=/v1/{parent=projects/*/transferConfigs/*/runs/*}/transferLogs\332A\006parent"
             ),
         ),
         _descriptor.MethodDescriptor(
@@ -3204,7 +3268,7 @@
             input_type=_CHECKVALIDCREDSREQUEST,
             output_type=_CHECKVALIDCREDSRESPONSE,
             serialized_options=_b(
-                '\202\323\344\223\002~"?/v1/{name=projects/*/locations/*/dataSources/*}:checkValidCreds:\001*Z8"3/v1/{name=projects/*/dataSources/*}:checkValidCreds:\001*'
+                '\202\323\344\223\002~"?/v1/{name=projects/*/locations/*/dataSources/*}:checkValidCreds:\001*Z8"3/v1/{name=projects/*/dataSources/*}:checkValidCreds:\001*\332A\004name'
             ),
         ),
     ],
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer.proto b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer.proto
index 9501ea3cc3b3..b0982d286865 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer.proto
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer.proto
@@ -17,7 +17,8 @@ syntax = "proto3";
 
 package google.cloud.bigquery.datatransfer.v1;
 
-import "google/api/annotations.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
 import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 import "google/rpc/status.proto";
@@ -96,6 +97,11 @@ message ScheduleOptions {
 // `destination_dataset_id` is created when needed and shared with the
 // appropriate data source service account.
 message TransferConfig {
+  option (google.api.resource) = {
+    type: "bigquerydatatransfer.googleapis.com/TransferConfig"
+    pattern: "projects/{project}/transferConfigs/{transfer_config}"
+  };
+
   // The resource name of the transfer config.
   // Transfer config names have the form of
   // `projects/{project_id}/locations/{region}/transferConfigs/{config_id}`.
@@ -105,8 +111,11 @@ message TransferConfig {
   // required, will be generated for config_id.
   string name = 1;
 
-  // The BigQuery target dataset id.
-  string destination_dataset_id = 2;
+  // The desination of the transfer config.
+  oneof destination {
+    // The BigQuery target dataset id.
+    string destination_dataset_id = 2;
+  }
 
   // User specified display name for the data transfer.
   string display_name = 3;
@@ -147,23 +156,28 @@ message TransferConfig {
   bool disabled = 13;
 
   // Output only. Data transfer modification time. Ignored by server on input.
-  google.protobuf.Timestamp update_time = 4;
+  google.protobuf.Timestamp update_time = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. Next time when data transfer will run.
-  google.protobuf.Timestamp next_run_time = 8;
+  google.protobuf.Timestamp next_run_time = 8 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. State of the most recently updated transfer run.
-  TransferState state = 10;
+  TransferState state = 10 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Deprecated. Unique ID of the user on whose behalf transfer is done.
   int64 user_id = 11;
 
   // Output only. Region in which BigQuery dataset is located.
-  string dataset_region = 14;
+  string dataset_region = 14 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // Represents a data transfer run.
 message TransferRun {
+  option (google.api.resource) = {
+    type: "bigquerydatatransfer.googleapis.com/TransferRun"
+    pattern: "projects/{project}/locations/{location}/transferConfigs/{transfer_config}/runs/{run}"
+  };
+
   // The resource name of the transfer run.
   // Transfer run names have the form
   // `projects/{project_id}/locations/{location}/transferConfigs/{config_id}/runs/{run_id}`.
@@ -182,23 +196,26 @@ message TransferRun {
 
   // Output only. Time when transfer run was started.
   // Parameter ignored by server for input requests.
-  google.protobuf.Timestamp start_time = 4;
+  google.protobuf.Timestamp start_time = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. Time when transfer run ended.
   // Parameter ignored by server for input requests.
-  google.protobuf.Timestamp end_time = 5;
+  google.protobuf.Timestamp end_time = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. Last time the data transfer run state was updated.
-  google.protobuf.Timestamp update_time = 6;
+  google.protobuf.Timestamp update_time = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. Data transfer specific parameters.
-  google.protobuf.Struct params = 9;
+  google.protobuf.Struct params = 9 [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // Output only. The BigQuery target dataset id.
-  string destination_dataset_id = 2;
+  // Data transfer destination.
+  oneof destination {
+    // Output only. The BigQuery target dataset id.
+    string destination_dataset_id = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
+  }
 
   // Output only. Data source id.
-  string data_source_id = 7;
+  string data_source_id = 7 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Data transfer run state. Ignored for input requests.
   TransferState state = 8;
@@ -211,7 +228,7 @@ message TransferRun {
   // scheduled manually, this is empty.
   // NOTE: the system might choose to delay the schedule depending on the
   // current load, so `schedule_time` doesn't always match this.
-  string schedule = 12;
+  string schedule = 12 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // Represents a user facing message for a particular data transfer run.
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer_pb2.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer_pb2.py
index 437774a5f201..64927cc95851 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer_pb2.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/proto/transfer_pb2.py
@@ -16,7 +16,8 @@
 _sym_db = _symbol_database.Default()
 
 
-from google.api import annotations_pb2 as google_dot_api_dot_annotations__pb2
+from google.api import field_behavior_pb2 as google_dot_api_dot_field__behavior__pb2
+from google.api import resource_pb2 as google_dot_api_dot_resource__pb2
 from google.protobuf import struct_pb2 as google_dot_protobuf_dot_struct__pb2
 from google.protobuf import timestamp_pb2 as google_dot_protobuf_dot_timestamp__pb2
 from google.rpc import status_pb2 as google_dot_rpc_dot_status__pb2
@@ -30,10 +31,11 @@
         "\n)com.google.cloud.bigquery.datatransfer.v1B\rTransferProtoP\001ZQgoogle.golang.org/genproto/googleapis/cloud/bigquery/datatransfer/v1;datatransfer\242\002\005GCBDT\252\002%Google.Cloud.BigQuery.DataTransfer.V1\312\002%Google\\Cloud\\BigQuery\\DataTransfer\\V1"
     ),
     serialized_pb=_b(
-        '\n:google/cloud/bigquery/datatransfer_v1/proto/transfer.proto\x12%google.cloud.bigquery.datatransfer.v1\x1a\x1cgoogle/api/annotations.proto\x1a\x1cgoogle/protobuf/struct.proto\x1a\x1fgoogle/protobuf/timestamp.proto\x1a\x17google/rpc/status.proto"\x90\x01\n\x0fScheduleOptions\x12\x1f\n\x17\x64isable_auto_scheduling\x18\x03 \x01(\x08\x12.\n\nstart_time\x18\x01 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12,\n\x08\x65nd_time\x18\x02 \x01(\x0b\x32\x1a.google.protobuf.Timestamp"\xff\x03\n\x0eTransferConfig\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x1e\n\x16\x64\x65stination_dataset_id\x18\x02 \x01(\t\x12\x14\n\x0c\x64isplay_name\x18\x03 \x01(\t\x12\x16\n\x0e\x64\x61ta_source_id\x18\x05 \x01(\t\x12\'\n\x06params\x18\t \x01(\x0b\x32\x17.google.protobuf.Struct\x12\x10\n\x08schedule\x18\x07 \x01(\t\x12P\n\x10schedule_options\x18\x18 \x01(\x0b\x32\x36.google.cloud.bigquery.datatransfer.v1.ScheduleOptions\x12 \n\x18\x64\x61ta_refresh_window_days\x18\x0c \x01(\x05\x12\x10\n\x08\x64isabled\x18\r \x01(\x08\x12/\n\x0bupdate_time\x18\x04 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12\x31\n\rnext_run_time\x18\x08 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12\x43\n\x05state\x18\n \x01(\x0e\x32\x34.google.cloud.bigquery.datatransfer.v1.TransferState\x12\x0f\n\x07user_id\x18\x0b \x01(\x03\x12\x16\n\x0e\x64\x61taset_region\x18\x0e \x01(\t"\xfe\x03\n\x0bTransferRun\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x31\n\rschedule_time\x18\x03 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12,\n\x08run_time\x18\n \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12(\n\x0c\x65rror_status\x18\x15 \x01(\x0b\x32\x12.google.rpc.Status\x12.\n\nstart_time\x18\x04 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12,\n\x08\x65nd_time\x18\x05 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12/\n\x0bupdate_time\x18\x06 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12\'\n\x06params\x18\t \x01(\x0b\x32\x17.google.protobuf.Struct\x12\x1e\n\x16\x64\x65stination_dataset_id\x18\x02 \x01(\t\x12\x16\n\x0e\x64\x61ta_source_id\x18\x07 \x01(\t\x12\x43\n\x05state\x18\x08 \x01(\x0e\x32\x34.google.cloud.bigquery.datatransfer.v1.TransferState\x12\x0f\n\x07user_id\x18\x0b \x01(\x03\x12\x10\n\x08schedule\x18\x0c \x01(\t"\x8a\x02\n\x0fTransferMessage\x12\x30\n\x0cmessage_time\x18\x01 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12X\n\x08severity\x18\x02 \x01(\x0e\x32\x46.google.cloud.bigquery.datatransfer.v1.TransferMessage.MessageSeverity\x12\x14\n\x0cmessage_text\x18\x03 \x01(\t"U\n\x0fMessageSeverity\x12 \n\x1cMESSAGE_SEVERITY_UNSPECIFIED\x10\x00\x12\x08\n\x04INFO\x10\x01\x12\x0b\n\x07WARNING\x10\x02\x12\t\n\x05\x45RROR\x10\x03*K\n\x0cTransferType\x12\x1d\n\x19TRANSFER_TYPE_UNSPECIFIED\x10\x00\x12\t\n\x05\x42\x41TCH\x10\x01\x12\r\n\tSTREAMING\x10\x02\x1a\x02\x18\x01*s\n\rTransferState\x12\x1e\n\x1aTRANSFER_STATE_UNSPECIFIED\x10\x00\x12\x0b\n\x07PENDING\x10\x02\x12\x0b\n\x07RUNNING\x10\x03\x12\r\n\tSUCCEEDED\x10\x04\x12\n\n\x06\x46\x41ILED\x10\x05\x12\r\n\tCANCELLED\x10\x06\x42\xe7\x01\n)com.google.cloud.bigquery.datatransfer.v1B\rTransferProtoP\x01ZQgoogle.golang.org/genproto/googleapis/cloud/bigquery/datatransfer/v1;datatransfer\xa2\x02\x05GCBDT\xaa\x02%Google.Cloud.BigQuery.DataTransfer.V1\xca\x02%Google\\Cloud\\BigQuery\\DataTransfer\\V1b\x06proto3'
+        '\n:google/cloud/bigquery/datatransfer_v1/proto/transfer.proto\x12%google.cloud.bigquery.datatransfer.v1\x1a\x1fgoogle/api/field_behavior.proto\x1a\x19google/api/resource.proto\x1a\x1cgoogle/protobuf/struct.proto\x1a\x1fgoogle/protobuf/timestamp.proto\x1a\x17google/rpc/status.proto"\x90\x01\n\x0fScheduleOptions\x12\x1f\n\x17\x64isable_auto_scheduling\x18\x03 \x01(\x08\x12.\n\nstart_time\x18\x01 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12,\n\x08\x65nd_time\x18\x02 \x01(\x0b\x32\x1a.google.protobuf.Timestamp"\x93\x05\n\x0eTransferConfig\x12\x0c\n\x04name\x18\x01 \x01(\t\x12 \n\x16\x64\x65stination_dataset_id\x18\x02 \x01(\tH\x00\x12\x14\n\x0c\x64isplay_name\x18\x03 \x01(\t\x12\x16\n\x0e\x64\x61ta_source_id\x18\x05 \x01(\t\x12\'\n\x06params\x18\t \x01(\x0b\x32\x17.google.protobuf.Struct\x12\x10\n\x08schedule\x18\x07 \x01(\t\x12P\n\x10schedule_options\x18\x18 \x01(\x0b\x32\x36.google.cloud.bigquery.datatransfer.v1.ScheduleOptions\x12 \n\x18\x64\x61ta_refresh_window_days\x18\x0c \x01(\x05\x12\x10\n\x08\x64isabled\x18\r \x01(\x08\x12\x34\n\x0bupdate_time\x18\x04 \x01(\x0b\x32\x1a.google.protobuf.TimestampB\x03\xe0\x41\x03\x12\x36\n\rnext_run_time\x18\x08 \x01(\x0b\x32\x1a.google.protobuf.TimestampB\x03\xe0\x41\x03\x12H\n\x05state\x18\n \x01(\x0e\x32\x34.google.cloud.bigquery.datatransfer.v1.TransferStateB\x03\xe0\x41\x03\x12\x0f\n\x07user_id\x18\x0b \x01(\x03\x12\x1b\n\x0e\x64\x61taset_region\x18\x0e \x01(\tB\x03\xe0\x41\x03:m\xea\x41j\n2bigquerydatatransfer.googleapis.com/TransferConfig\x12\x34projects/{project}/transferConfigs/{transfer_config}B\r\n\x0b\x64\x65stination"\xc0\x05\n\x0bTransferRun\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x31\n\rschedule_time\x18\x03 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12,\n\x08run_time\x18\n \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12(\n\x0c\x65rror_status\x18\x15 \x01(\x0b\x32\x12.google.rpc.Status\x12\x33\n\nstart_time\x18\x04 \x01(\x0b\x32\x1a.google.protobuf.TimestampB\x03\xe0\x41\x03\x12\x31\n\x08\x65nd_time\x18\x05 \x01(\x0b\x32\x1a.google.protobuf.TimestampB\x03\xe0\x41\x03\x12\x34\n\x0bupdate_time\x18\x06 \x01(\x0b\x32\x1a.google.protobuf.TimestampB\x03\xe0\x41\x03\x12,\n\x06params\x18\t \x01(\x0b\x32\x17.google.protobuf.StructB\x03\xe0\x41\x03\x12%\n\x16\x64\x65stination_dataset_id\x18\x02 \x01(\tB\x03\xe0\x41\x03H\x00\x12\x1b\n\x0e\x64\x61ta_source_id\x18\x07 \x01(\tB\x03\xe0\x41\x03\x12\x43\n\x05state\x18\x08 \x01(\x0e\x32\x34.google.cloud.bigquery.datatransfer.v1.TransferState\x12\x0f\n\x07user_id\x18\x0b \x01(\x03\x12\x15\n\x08schedule\x18\x0c \x01(\tB\x03\xe0\x41\x03:\x8b\x01\xea\x41\x87\x01\n/bigquerydatatransfer.googleapis.com/TransferRun\x12Tprojects/{project}/locations/{location}/transferConfigs/{transfer_config}/runs/{run}B\r\n\x0b\x64\x65stination"\x8a\x02\n\x0fTransferMessage\x12\x30\n\x0cmessage_time\x18\x01 \x01(\x0b\x32\x1a.google.protobuf.Timestamp\x12X\n\x08severity\x18\x02 \x01(\x0e\x32\x46.google.cloud.bigquery.datatransfer.v1.TransferMessage.MessageSeverity\x12\x14\n\x0cmessage_text\x18\x03 \x01(\t"U\n\x0fMessageSeverity\x12 \n\x1cMESSAGE_SEVERITY_UNSPECIFIED\x10\x00\x12\x08\n\x04INFO\x10\x01\x12\x0b\n\x07WARNING\x10\x02\x12\t\n\x05\x45RROR\x10\x03*K\n\x0cTransferType\x12\x1d\n\x19TRANSFER_TYPE_UNSPECIFIED\x10\x00\x12\t\n\x05\x42\x41TCH\x10\x01\x12\r\n\tSTREAMING\x10\x02\x1a\x02\x18\x01*s\n\rTransferState\x12\x1e\n\x1aTRANSFER_STATE_UNSPECIFIED\x10\x00\x12\x0b\n\x07PENDING\x10\x02\x12\x0b\n\x07RUNNING\x10\x03\x12\r\n\tSUCCEEDED\x10\x04\x12\n\n\x06\x46\x41ILED\x10\x05\x12\r\n\tCANCELLED\x10\x06\x42\xe7\x01\n)com.google.cloud.bigquery.datatransfer.v1B\rTransferProtoP\x01ZQgoogle.golang.org/genproto/googleapis/cloud/bigquery/datatransfer/v1;datatransfer\xa2\x02\x05GCBDT\xaa\x02%Google.Cloud.BigQuery.DataTransfer.V1\xca\x02%Google\\Cloud\\BigQuery\\DataTransfer\\V1b\x06proto3'
     ),
     dependencies=[
-        google_dot_api_dot_annotations__pb2.DESCRIPTOR,
+        google_dot_api_dot_field__behavior__pb2.DESCRIPTOR,
+        google_dot_api_dot_resource__pb2.DESCRIPTOR,
         google_dot_protobuf_dot_struct__pb2.DESCRIPTOR,
         google_dot_protobuf_dot_timestamp__pb2.DESCRIPTOR,
         google_dot_rpc_dot_status__pb2.DESCRIPTOR,
@@ -62,8 +64,8 @@
     ],
     containing_type=None,
     serialized_options=_b("\030\001"),
-    serialized_start=1662,
-    serialized_end=1737,
+    serialized_start=2034,
+    serialized_end=2109,
 )
 _sym_db.RegisterEnumDescriptor(_TRANSFERTYPE)
 
@@ -99,8 +101,8 @@
     ],
     containing_type=None,
     serialized_options=None,
-    serialized_start=1739,
-    serialized_end=1854,
+    serialized_start=2111,
+    serialized_end=2226,
 )
 _sym_db.RegisterEnumDescriptor(_TRANSFERSTATE)
 
@@ -141,8 +143,8 @@
     ],
     containing_type=None,
     serialized_options=None,
-    serialized_start=1575,
-    serialized_end=1660,
+    serialized_start=1947,
+    serialized_end=2032,
 )
 _sym_db.RegisterEnumDescriptor(_TRANSFERMESSAGE_MESSAGESEVERITY)
 
@@ -217,8 +219,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=220,
-    serialized_end=364,
+    serialized_start=250,
+    serialized_end=394,
 )
 
 
@@ -406,7 +408,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -424,7 +426,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -442,7 +444,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -478,20 +480,30 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
     ],
     extensions=[],
     nested_types=[],
     enum_types=[],
-    serialized_options=None,
+    serialized_options=_b(
+        "\352Aj\n2bigquerydatatransfer.googleapis.com/TransferConfig\0224projects/{project}/transferConfigs/{transfer_config}"
+    ),
     is_extendable=False,
     syntax="proto3",
     extension_ranges=[],
-    oneofs=[],
-    serialized_start=367,
-    serialized_end=878,
+    oneofs=[
+        _descriptor.OneofDescriptor(
+            name="destination",
+            full_name="google.cloud.bigquery.datatransfer.v1.TransferConfig.destination",
+            index=0,
+            containing_type=None,
+            fields=[],
+        )
+    ],
+    serialized_start=397,
+    serialized_end=1056,
 )
 
 
@@ -589,7 +601,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -607,7 +619,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -625,7 +637,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -643,7 +655,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -661,7 +673,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -679,7 +691,7 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
         _descriptor.FieldDescriptor(
@@ -733,20 +745,30 @@
             containing_type=None,
             is_extension=False,
             extension_scope=None,
-            serialized_options=None,
+            serialized_options=_b("\340A\003"),
             file=DESCRIPTOR,
         ),
     ],
     extensions=[],
     nested_types=[],
     enum_types=[],
-    serialized_options=None,
+    serialized_options=_b(
+        "\352A\207\001\n/bigquerydatatransfer.googleapis.com/TransferRun\022Tprojects/{project}/locations/{location}/transferConfigs/{transfer_config}/runs/{run}"
+    ),
     is_extendable=False,
     syntax="proto3",
     extension_ranges=[],
-    oneofs=[],
-    serialized_start=881,
-    serialized_end=1391,
+    oneofs=[
+        _descriptor.OneofDescriptor(
+            name="destination",
+            full_name="google.cloud.bigquery.datatransfer.v1.TransferRun.destination",
+            index=0,
+            containing_type=None,
+            fields=[],
+        )
+    ],
+    serialized_start=1059,
+    serialized_end=1763,
 )
 
 
@@ -820,8 +842,8 @@
     syntax="proto3",
     extension_ranges=[],
     oneofs=[],
-    serialized_start=1394,
-    serialized_end=1660,
+    serialized_start=1766,
+    serialized_end=2032,
 )
 
 _SCHEDULEOPTIONS.fields_by_name[
@@ -841,6 +863,12 @@
     "next_run_time"
 ].message_type = google_dot_protobuf_dot_timestamp__pb2._TIMESTAMP
 _TRANSFERCONFIG.fields_by_name["state"].enum_type = _TRANSFERSTATE
+_TRANSFERCONFIG.oneofs_by_name["destination"].fields.append(
+    _TRANSFERCONFIG.fields_by_name["destination_dataset_id"]
+)
+_TRANSFERCONFIG.fields_by_name[
+    "destination_dataset_id"
+].containing_oneof = _TRANSFERCONFIG.oneofs_by_name["destination"]
 _TRANSFERRUN.fields_by_name[
     "schedule_time"
 ].message_type = google_dot_protobuf_dot_timestamp__pb2._TIMESTAMP
@@ -863,6 +891,12 @@
     "params"
 ].message_type = google_dot_protobuf_dot_struct__pb2._STRUCT
 _TRANSFERRUN.fields_by_name["state"].enum_type = _TRANSFERSTATE
+_TRANSFERRUN.oneofs_by_name["destination"].fields.append(
+    _TRANSFERRUN.fields_by_name["destination_dataset_id"]
+)
+_TRANSFERRUN.fields_by_name[
+    "destination_dataset_id"
+].containing_oneof = _TRANSFERRUN.oneofs_by_name["destination"]
 _TRANSFERMESSAGE.fields_by_name[
     "message_time"
 ].message_type = google_dot_protobuf_dot_timestamp__pb2._TIMESTAMP
@@ -934,6 +968,8 @@
           If config\_id is not provided, usually a uuid, even though it
           is not guaranteed or required, will be generated for
           config\_id.
+      destination:
+          The desination of the transfer config.
       destination_dataset_id:
           The BigQuery target dataset id.
       display_name:
@@ -1017,6 +1053,8 @@
           updated.
       params:
           Output only. Data transfer specific parameters.
+      destination:
+          Data transfer destination.
       destination_dataset_id:
           Output only. The BigQuery target dataset id.
       data_source_id:
@@ -1063,4 +1101,17 @@
 
 DESCRIPTOR._options = None
 _TRANSFERTYPE._options = None
+_TRANSFERCONFIG.fields_by_name["update_time"]._options = None
+_TRANSFERCONFIG.fields_by_name["next_run_time"]._options = None
+_TRANSFERCONFIG.fields_by_name["state"]._options = None
+_TRANSFERCONFIG.fields_by_name["dataset_region"]._options = None
+_TRANSFERCONFIG._options = None
+_TRANSFERRUN.fields_by_name["start_time"]._options = None
+_TRANSFERRUN.fields_by_name["end_time"]._options = None
+_TRANSFERRUN.fields_by_name["update_time"]._options = None
+_TRANSFERRUN.fields_by_name["params"]._options = None
+_TRANSFERRUN.fields_by_name["destination_dataset_id"]._options = None
+_TRANSFERRUN.fields_by_name["data_source_id"]._options = None
+_TRANSFERRUN.fields_by_name["schedule"]._options = None
+_TRANSFERRUN._options = None
 # @@protoc_insertion_point(module_scope)
diff --git a/packages/google-cloud-bigquery-datatransfer/synth.metadata b/packages/google-cloud-bigquery-datatransfer/synth.metadata
index 1643741ae8a9..8ab46cb47b0b 100644
--- a/packages/google-cloud-bigquery-datatransfer/synth.metadata
+++ b/packages/google-cloud-bigquery-datatransfer/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-08-03T12:11:16.935211Z",
+  "updateTime": "2019-09-27T12:12:10.005793Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.32.1",
-        "dockerImage": "googleapis/artman@sha256:a684d40ba9a4e15946f5f2ca6b4bd9fe301192f522e9de4fff622118775f309b"
+        "version": "0.37.1",
+        "dockerImage": "googleapis/artman@sha256:6068f67900a3f0bdece596b97bda8fc70406ca0e137a941f4c81d3217c994a80"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "7b212a8d2319cd81a7b6942c25dbf4550480a06c",
-        "internalRef": "261339454"
+        "sha": "cd112d8d255e0099df053643d4bd12c228ef7b1b",
+        "internalRef": "271468707"
       }
     },
     {