SYMPTOM:
In Strategy 10.x, Attributes/Metrics cannot be deleted due to dependencies on Report Services Document, although Search for dependts both in Web and Developer does not indicate any dependents. Enabling "display Managed Objects" does not show all dependencies also.

CAUSE:
The root cause of the issue is unknown.
Action:
1. Request object manager package from customer to perform test in-house.
2. Follow steps outlined in KB9665 https://community.Strategy.com/s/article/KB9665-How-to-force-the-deletion-of-an-application-object-s
3. Try to delete corrupted metric.
4. Window with warning message will appear.
5. Click on "Preview Dependents".
6. Window with all dependent objects will appear:

KB439502