Re: We have terminated users in the system, but the the relationships to dealer and vendor still exists

There is no standard process available.  But you can add some logic in Badi which terminate relation based on user id termination.

Using this badi you can also control that if any user was created with definite start and end date then we can ensure that same dates were available to relations so that when User gets expired relations will also get expired.

Thanks

Naveen