Check for existing ID's via the ITIM Identity Policies and increasing Max Search results from 1000 objects.

In the Default Identity Policy, the line following checks for ID's in All services and in the Recycle Bin:

IdentityPolicy.userIDExists(baseidentity, true, true);

The first boolean expression is for CheckAllServices, the second is for CheckRecycleBin.

Setting either of these values to false will disable ID checking in that area. When CheckAllServices is set to true, it will only create a new ID for that user on a service if no other user has that ID on any service.

To increase the Max Search Results, modify the "enrole.ui.maxSearchResults" line in the $ITIM_HOME/data/ui.properties file (shown below)

enrole.ui.maxSearchResults=1000