Has anyone been able to look for a specific google drive label (metadata) with an API policy using a DLP profile and then restrict/change access to the file? I feel like this worked a long time ago but we can't seem to get it going now.

Essentially, when a user applies a specific label on a Google document (corporate google drive configured with API Introspection) we want to detect that label when the document is shared externally. The action will be to remove the external share.