Bulk Load of Users

Hi Experts,

Have you used bulk load of users with GRC10 for SAP go-live activities.

Here at my project we seem to have intermittent issues and of course are at GRC 10 SP8 latest available is SP13.

For some business roles it seems to work fine for some it refuses to load even for 5 users.

Are there logs that can be turned on to get to the depth of the issue. Also is there a way to check if business roles were created properly and no consistency issues

Thanks

Maltesh J