Cannot Delete Custom Entity

[MahmoudYasser]

I am trying to delete custom entity but it cannot be deleted because it has relationship with activities that cannot be deleted manually and when I delete the custom entity I get this error message:

"EntityRelationshipRole with id 98716f1f-d6a1-ec11-9840-0022489e0b73 cannot be deleted because it is a system record and system records of this type cannot be deleted."

I think the relationship mentioned in message is the relationship generated when I check activities option on that entity.

I appreciate any ideas.

[timpartridge1]

Same problem. I also have a custom entity with the activities option selected. Not sure if that is root cause but we have the same situation. I can't find out how to query entity relationship roles to find out exactly what the error message is referring to. Only the following page about dependencies makes a reference to it. When I show dependencies on the custom entity, no dependencies are listed with the component type of entity relationship type.

[MahmoudYasser]

We opened a ticket from Microsoft and it turned out that it was a known problem and it will be solved through future updates, but in our case we could not wait, so they ran script on their back-end on our organaization on the entities to be deleted and after that I deleted without problems