diff --git a/specification/maintenance/resource-manager/Microsoft.Maintenance/preview/2021-09-01-preview/Maintenance.json b/specification/maintenance/resource-manager/Microsoft.Maintenance/preview/2021-09-01-preview/Maintenance.json
index 7ad47afb1860..527c203497b1 100644
--- a/specification/maintenance/resource-manager/Microsoft.Maintenance/preview/2021-09-01-preview/Maintenance.json
+++ b/specification/maintenance/resource-manager/Microsoft.Maintenance/preview/2021-09-01-preview/Maintenance.json
@@ -2148,7 +2148,8 @@
           "items": {
             "$ref": "#/definitions/taskProperties",
             "x-ms-client-flatten": true
-          }
+          },
+          "x-ms-identifiers": []
         },
         "postTasks": {
           "type": "array",
@@ -2156,7 +2157,8 @@
           "items": {
             "$ref": "#/definitions/taskProperties",
             "x-ms-client-flatten": true
-          }
+          },
+          "x-ms-identifiers": []
         }
       }
     },
@@ -2263,7 +2265,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/Operation"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         }
       }
     },
@@ -2325,7 +2330,8 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/Update"
-          }
+          },
+          "x-ms-identifiers": []
         }
       }
     },
diff --git a/specification/managednetwork/resource-manager/Microsoft.ManagedNetwork/preview/2019-06-01-preview/managedNetwork.json b/specification/managednetwork/resource-manager/Microsoft.ManagedNetwork/preview/2019-06-01-preview/managedNetwork.json
index a2708092d737..6be3dcc09891 100644
--- a/specification/managednetwork/resource-manager/Microsoft.ManagedNetwork/preview/2019-06-01-preview/managedNetwork.json
+++ b/specification/managednetwork/resource-manager/Microsoft.ManagedNetwork/preview/2019-06-01-preview/managedNetwork.json
@@ -1385,6 +1385,9 @@
           "items": {
             "$ref": "#/definitions/Operation"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "description": "List of Resource Provider operations supported by the Managed Network resource provider."
         },
         "nextLink": {
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
index 877402e94ebb..77b2f01bdd12 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
@@ -612,6 +612,10 @@
           "items": {
             "$ref": "#/definitions/Authorization"
           },
+          "x-ms-identifiers": [
+            "principalId",
+            "roleDefinitionId"
+          ],
           "description": "The collection of authorization objects describing the access Azure Active Directory principals in the managedBy tenant will receive on the delegated resource in the managed tenant."
         },
         "eligibleAuthorizations": {
@@ -619,6 +623,9 @@
           "items": {
             "$ref": "#/definitions/EligibleAuthorization"
           },
+          "x-ms-identifiers": [
+            "principalId"
+          ],
           "description": "The collection of eligible authorization objects describing the just-in-time access Azure Active Directory principals in the managedBy tenant will receive on the delegated resource in the managed tenant."
         },
         "registrationDefinitionName": {
@@ -762,6 +769,10 @@
                   "items": {
                     "$ref": "#/definitions/Authorization"
                   },
+                  "x-ms-identifiers": [
+                    "principalId",
+                    "roleDefinitionId"
+                  ],
                   "description": "The collection of authorization objects describing the access Azure Active Directory principals in the managedBy tenant will receive on the delegated resource in the managed tenant."
                 },
                 "eligibleAuthorizations": {
@@ -769,6 +780,9 @@
                   "items": {
                     "$ref": "#/definitions/EligibleAuthorization"
                   },
+                  "x-ms-identifiers": [
+                    "principalId"
+                  ],
                   "description": "The collection of eligible authorization objects describing the just-in-time access Azure Active Directory principals in the managedBy tenant will receive on the delegated resource in the managed tenant."
                 },
                 "registrationDefinitionName": {
@@ -904,6 +918,10 @@
           "items": {
             "$ref": "#/definitions/Authorization"
           },
+          "x-ms-identifiers": [
+            "principalId",
+            "roleDefinitionId"
+          ],
           "description": "The collection of authorization objects describing the access Azure Active Directory principals in the managedBy tenant will receive on the delegated resource in the managed tenant."
         },
         "eligibleAuthorizations": {
@@ -911,6 +929,9 @@
           "items": {
             "$ref": "#/definitions/EligibleAuthorization"
           },
+          "x-ms-identifiers": [
+            "principalId"
+          ],
           "description": "The collection of eligible authorization objects describing the just-in-time access Azure Active Directory principals in the managedBy tenant will receive on the delegated resource in the managed tenant."
         },
         "offerDisplayName": {
@@ -1020,6 +1041,9 @@
           "items": {
             "$ref": "#/definitions/Operation"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "description": "The list of Microsoft.ManagedServices operations."
         }
       },
@@ -1125,6 +1149,9 @@
           "items": {
             "$ref": "#/definitions/EligibleApprover"
           },
+          "x-ms-identifiers": [
+            "principalId"
+          ],
           "description": "The list of managedByTenant approvers for the eligible authorization."
         }
       },
@@ -1149,7 +1176,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/ErrorDefinition"
-          }
+          },
+          "x-ms-identifiers": [
+            "code"
+          ]
         }
       },
       "required": [
diff --git a/specification/managementgroups/resource-manager/Microsoft.Management/stable/2021-04-01/management.json b/specification/managementgroups/resource-manager/Microsoft.Management/stable/2021-04-01/management.json
index bc6ed0b42164..53e98f6000bc 100644
--- a/specification/managementgroups/resource-manager/Microsoft.Management/stable/2021-04-01/management.json
+++ b/specification/managementgroups/resource-manager/Microsoft.Management/stable/2021-04-01/management.json
@@ -968,7 +968,10 @@
           "readOnly": true,
           "items": {
             "$ref": "#/definitions/Operation"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         },
         "nextLink": {
           "description": "URL to get the next set of operation list results if there are any.",
@@ -1262,7 +1265,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/ManagementGroupPathElement"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         },
         "managementGroupAncestors": {
           "description": "The ancestors of the management group.",
@@ -1278,7 +1284,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/ManagementGroupPathElement"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         }
       }
     },
diff --git a/specification/managementpartner/resource-manager/Microsoft.ManagementPartner/preview/2018-02-01/ManagementPartner.json b/specification/managementpartner/resource-manager/Microsoft.ManagementPartner/preview/2018-02-01/ManagementPartner.json
index 111e6dc595cd..9190bfd7e164 100644
--- a/specification/managementpartner/resource-manager/Microsoft.ManagementPartner/preview/2018-02-01/ManagementPartner.json
+++ b/specification/managementpartner/resource-manager/Microsoft.ManagementPartner/preview/2018-02-01/ManagementPartner.json
@@ -366,6 +366,9 @@
             "$ref": "#/definitions/OperationResponse",
             "description": "this is the operation response property"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "description": "this is the operation response list"
         },
         "nextLink": {
diff --git a/specification/maps/resource-manager/Microsoft.Maps/preview/2021-12-01-preview/maps-management.json b/specification/maps/resource-manager/Microsoft.Maps/preview/2021-12-01-preview/maps-management.json
index b7e9f4e9862f..cd5b66857a9f 100644
--- a/specification/maps/resource-manager/Microsoft.Maps/preview/2021-12-01-preview/maps-management.json
+++ b/specification/maps/resource-manager/Microsoft.Maps/preview/2021-12-01-preview/maps-management.json
@@ -1163,7 +1163,10 @@
           "uniqueItems": false,
           "items": {
             "$ref": "#/definitions/OperationDetail"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         },
         "nextLink": {
           "description": "URL client should use to fetch the next page (per server side paging).\r\nIt's null for now, added for future use.",
@@ -1239,7 +1242,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/MetricSpecification"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         }
       }
     },
@@ -1268,7 +1274,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/Dimension"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         },
         "aggregationType": {
           "type": "string",
@@ -1392,6 +1401,7 @@
             "description": "Specifies a CORS rule for the Map Account.",
             "$ref": "#/definitions/CorsRule"
           },
+          "x-ms-identifiers": [],
           "description": "The list of CORS rules. You can include up to five CorsRule elements in the request. "
         }
       },
diff --git a/specification/mariadb/resource-manager/Microsoft.DBforMariaDB/stable/2018-06-01/mariadb.json b/specification/mariadb/resource-manager/Microsoft.DBforMariaDB/stable/2018-06-01/mariadb.json
index 0821e2db08b4..b3c4371ed5e5 100644
--- a/specification/mariadb/resource-manager/Microsoft.DBforMariaDB/stable/2018-06-01/mariadb.json
+++ b/specification/mariadb/resource-manager/Microsoft.DBforMariaDB/stable/2018-06-01/mariadb.json
@@ -2276,6 +2276,9 @@
           "items": {
             "$ref": "#/definitions/Operation"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "description": "The list of resource provider operations."
         }
       },
diff --git a/specification/marketplace/resource-manager/Microsoft.Marketplace/stable/2021-06-01/Marketplace.json b/specification/marketplace/resource-manager/Microsoft.Marketplace/stable/2021-06-01/Marketplace.json
index 0425f494c645..b9497354c2b4 100644
--- a/specification/marketplace/resource-manager/Microsoft.Marketplace/stable/2021-06-01/Marketplace.json
+++ b/specification/marketplace/resource-manager/Microsoft.Marketplace/stable/2021-06-01/Marketplace.json
@@ -1351,7 +1351,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/Recipient"
-          }
+          },
+          "x-ms-identifiers": [
+            "principalId"
+          ]
         },
         "sendToAllMarketplaceAdmins": {
           "description": "Gets or sets whether to send email to all marketplace admins for new requests",
@@ -1473,7 +1476,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/OfferProperties"
-          }
+          },
+          "x-ms-identifiers": [
+            "uniqueOfferId"
+          ]
         },
         "nextLink": {
           "description": "URL to get the next set of PrivateStore list results if there are any.",
@@ -1557,7 +1563,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/Plan"
-          }
+          },
+          "x-ms-identifiers": [
+            "skuId"
+          ]
         }
       }
     },
@@ -1688,7 +1697,10 @@
           "readOnly": true,
           "items": {
             "$ref": "#/definitions/PlanRequesterDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "planId"
+          ]
         },
         "collectionIds": {
           "description": "Gets or sets list of associated collection ids",
@@ -1718,7 +1730,8 @@
           "readOnly": true,
           "items": {
             "$ref": "#/definitions/UserRequestDetails"
-          }
+          },
+          "x-ms-identifiers": []
         }
       }
     },
@@ -1806,7 +1819,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/planDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "planId"
+          ]
         },
         "isClosed": {
           "description": "Gets a value indicating whether the request is closed",
@@ -1927,19 +1943,32 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/StopSellNotifications"
-          }
+          },
+          "x-ms-identifiers": [
+            "offerId",
+            "messageCode"
+          ]
         },
         "newNotifications": {
           "type": "array",
           "items": {
             "$ref": "#/definitions/NewNotifications"
-          }
+          },
+          "x-ms-identifiers": [
+            "offerId",
+            "messageCode"
+          ]
         },
         "approvalRequests": {
           "type": "array",
           "items": {
             "$ref": "#/definitions/RequestApprovalsDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "offerId",
+            "publisherId",
+            "messageCode"
+          ]
         }
       }
     },
@@ -1973,7 +2002,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/PlanNotificationDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "planId"
+          ]
         }
       }
     },
@@ -2007,7 +2039,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/PlanNotificationDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "planId"
+          ]
         }
       }
     },
@@ -2055,7 +2090,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/PlanNotificationDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "planId"
+          ]
         }
       }
     },
@@ -2160,14 +2198,20 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/CollectionsDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "collectionId"
+          ]
         },
         "failed": {
           "description": "Failed collections",
           "type": "array",
           "items": {
             "$ref": "#/definitions/CollectionsDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "collectionId"
+          ]
         }
       }
     },
@@ -2208,14 +2252,20 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/CollectionsDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "collectionId"
+          ]
         },
         "failed": {
           "description": "Failed collections",
           "type": "array",
           "items": {
             "$ref": "#/definitions/CollectionsDetails"
-          }
+          },
+          "x-ms-identifiers": [
+            "collectionId"
+          ]
         }
       }
     },
@@ -2261,7 +2311,10 @@
       "type": "array",
       "items": {
         "$ref": "#/definitions/QueryApprovedPlansDetails"
-      }
+      },
+      "x-ms-identifiers": [
+        "planId"
+      ]
     },
     "QueryApprovedPlansDetails": {
       "description": "Query approved plans response",
@@ -2401,6 +2454,9 @@
           "items": {
             "$ref": "#/definitions/SingleOperation"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "description": "List of Microsoft.Marketplace operations supported by the Microsoft.Marketplace resource provider."
         },
         "nextLink": {
diff --git a/specification/marketplacenotifications/resource-manager/Microsoft.MarketplaceNotifications/stable/2021-03-03/MarketplaceNotifications.json b/specification/marketplacenotifications/resource-manager/Microsoft.MarketplaceNotifications/stable/2021-03-03/MarketplaceNotifications.json
index 5cbb73ca9b36..3130847d3279 100644
--- a/specification/marketplacenotifications/resource-manager/Microsoft.MarketplaceNotifications/stable/2021-03-03/MarketplaceNotifications.json
+++ b/specification/marketplacenotifications/resource-manager/Microsoft.MarketplaceNotifications/stable/2021-03-03/MarketplaceNotifications.json
@@ -250,7 +250,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/OperationDetail"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         },
         "nextLink": {
           "description": "URL client should use to fetch the next page (per server side paging).\r\nIt's null for now, added for future use.",
diff --git a/specification/marketplaceordering/resource-manager/Microsoft.MarketplaceOrdering/stable/2021-01-01/Agreements.json b/specification/marketplaceordering/resource-manager/Microsoft.MarketplaceOrdering/stable/2021-01-01/Agreements.json
index 1fc48b67edb3..fbf4b0d1c8e5 100644
--- a/specification/marketplaceordering/resource-manager/Microsoft.MarketplaceOrdering/stable/2021-01-01/Agreements.json
+++ b/specification/marketplaceordering/resource-manager/Microsoft.MarketplaceOrdering/stable/2021-01-01/Agreements.json
@@ -503,6 +503,9 @@
           "items": {
             "$ref": "#/definitions/Operation"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "description": "List of Microsoft.MarketplaceOrdering operations supported by the Microsoft.MarketplaceOrdering resource provider."
         },
         "nextLink": {