diff --git a/specification/synapse/data-plane/readme.md b/specification/synapse/data-plane/readme.md
index 8f05fc048c21..94b373df9f7f 100644
--- a/specification/synapse/data-plane/readme.md
+++ b/specification/synapse/data-plane/readme.md
@@ -76,7 +76,6 @@ input-file:
   - Microsoft.Synapse/stable/2020-12-01/sqlScripts.json
   - Microsoft.Synapse/stable/2020-12-01/triggers.json
   - Microsoft.Synapse/stable/2020-12-01/workspace.json
-  - Microsoft.Synapse/stable/2020-12-01/credential.json
   - Microsoft.Synapse/stable/2020-12-01/entityTypes/DataFlow.json
   - Microsoft.Synapse/stable/2020-12-01/entityTypes/Dataset.json
   - Microsoft.Synapse/stable/2020-12-01/entityTypes/LinkedService.json
@@ -85,18 +84,19 @@ input-file:
   - Microsoft.Synapse/stable/2020-12-01/entityTypes/SparkJobDefinition.json
   - Microsoft.Synapse/stable/2020-12-01/entityTypes/SqlScript.json
   - Microsoft.Synapse/stable/2020-12-01/entityTypes/Trigger.json
-  - Microsoft.Synapse/stable/2020-12-01/entityTypes/Credential.json
 ```
 
 ### Tag: package-artifacts-2021-04-01
 
 These settings apply only when `--tag=package-artifacts-2021-04-01` is specified on the command line.
 
-**ATTENTION**: Please DO NOT generate SDK based on this tag. Syms API set is not ready to be included in SDK.
+**ATTENTION**: Please DO NOT generate SDK based on this tag. Syms and credential API set is not ready to be included in SDK.
 
 ``` yaml $(tag) == 'package-artifacts-2021-04-01'
 input-file:
   - Microsoft.Synapse/stable/2021-04-01/symsAPI.json
+  - Microsoft.Synapse/stable/2020-12-01/credential.json
+  - Microsoft.Synapse/stable/2020-12-01/entityTypes/Credential.json
 ```
 
 ### Tag: package-artifacts-composite-v6