diff --git a/docs/content/en/docs-dev/user-guide/configuration-reference.md b/docs/content/en/docs-dev/user-guide/configuration-reference.md
index d911109aee..e971f00336 100644
--- a/docs/content/en/docs-dev/user-guide/configuration-reference.md
+++ b/docs/content/en/docs-dev/user-guide/configuration-reference.md
@@ -647,7 +647,7 @@ Note: By default, the sum of traffic is rounded to 100. If both `primary` and `c
 | approvers | []string | List of username who has permission to approve. | Yes |
 | minApproverNum | int | Number of minimum needed approvals to make this stage complete. Default is 1. | No |
 
-### CustomSyncStageOptions
+### CustomSyncStageOptions (deprecated)
 | Field | Type | Description | Required |
 |-|-|-|-|
 | timeout | duration | The maximum time the stage can be taken to run. Default is `6h`| No |
diff --git a/docs/content/en/docs-dev/user-guide/managing-application/customizing-deployment/custom-sync.md b/docs/content/en/docs-dev/user-guide/managing-application/customizing-deployment/custom-sync.md
index a18c9d22cd..47d7d7a534 100644
--- a/docs/content/en/docs-dev/user-guide/managing-application/customizing-deployment/custom-sync.md
+++ b/docs/content/en/docs-dev/user-guide/managing-application/customizing-deployment/custom-sync.md
@@ -8,7 +8,7 @@ description: >
 
 `CUSTOM_SYNC` is one stage in the pipeline and you can define scripts to deploy run in this stage.
 
-> Note: This feature is at the alpha status and only available for application of kind AWS Lambda.
+> Note: This feature is marked as a deprecated feature and will be removed later.
 
 ## How to configure Custom Sync