Rolling back Business Partner creation
Have a need when a business partner is created that the first name and last name do not already exist in the system of another partner. If it does, want to:
1) Pop up a warning message and
2) Prevent the data from being saved on the database.
Warning message I figure can be popped up in a function module of the event DCHCK. But I cannot figure a way how to rollback the partner creation.
Can anyone please advise on this?