Microsoft Purview – “Data policy enforcement” toggle missing for AWS S3 source

Hello, In Microsoft Purview, the “Data policy enforcement” toggle does not appear at all for an AWS S3 data source, even though prerequisites seem to be met.

Environment

• Microsoft 365 E5 license
• Microsoft Purview Data Map enabled
• AWS S3 registered and scanned successfully
• Sensitive data classification working
• Sensitive label schematized option not available - says that it has been moved , but doesn't indicate where
• Purview Data Policies created and published
• I have Purview Administrator / Data Source Admin permissions

Issue

• The Data policy enforcement toggle:
  • Does not appear during initial S3 registration
  • Does not appear when editing the S3 data source
• As a result, Purview data policies cannot be enforced on S3 buckets

Expected behavior according to Microsoft documentation indicates that Data policy enforcement must be enabled during or after S3 registration to apply data policies to S3 data.

Questions

1. What exact conditions/prerequisites control whether the Data policy enforcement toggle appears for S3?
2. Can the toggle be enabled after initial registration, or only at creation time?
3. If the toggle never appeared, is re-registering the S3 source the only supported fix?
4. Are there any known limitations or portal issues where the toggle is hidden despite E5 licensing and correct permissions?

Any clarification on expected behavior or how to surface the toggle would be appreciated.

Screen shot from a youtube video that shows the option being available