Email id not generated even though user has the privilege

Hi,

Privilege to create Exchange mail box is already assigned to the user and the privilege status is showing as OK. But, mail box is not created for the users. This issue is not with all the users. Only few users are having this issue. When we check the Database for the users who are having this issue, SYSTEM privilege is not existing for these users. But for the users who has mail box, they have SYSTEM privilege in the Database.

I heard from some other sources that this is the existing issue with SAP IDM and have asked us to update users by adding this privilege from SQL Query (from backend).

We would like to know the root cause for this issue.

Can anyone help us to find the root cause for this issue.