Diagnosis
You want to delete a change master record that has been created withthe leading change masterrecord function.

System Response
The system checks whether change packagesexist with reference to the leading change master record.

Procedure
Since thre are change packages for the leading change master record,you cannot delete the change leader.
You can only delete the leading change master record if you delete theallocated change packages before. Please remember that object changesmay have been made with reference to the change packages.