Diagnosis
You tried to perform set operations after you have edited address listversions manually.

System Response
You are not allowed to perform set operations if an address listversion has been edited manually within the same transaction.
Changes to the address list include:

• Changing the description of a version


• Deleting a version


• Completing a version


• Deleting or adding addresses

Procedure
Save your manual changes by saving the direct mailing campaign. Calladdress list processing again and perform the set operations.