Adobe Audience Manager
Adobe Experience Platform
While mapping/editing an AEP segment in AAM, the following errors occur:
There were errors trying to save the segment. Policy enforcement service error: UPSERT forbidden. Upsert will result in parent dangling reference.
This could happen at the time of enablement from AEP to AAM connector when backfill is going on, but that has a very short window.
Retrying after a gap of 5-10 minutes usually results in successful action.