BSY401E The current backup generation is not in incremental status.
Explanation
For a System Level Backup that has enough target volumes
for multiple generations, only one generation can be in incremental
status. This message is produced when END-INCREMENTAL was specified
when the next backup generation is not for a generation that is in
incremental status.
User response
You can only enter the END-INCREMENTAL card when
the backup generation you are about to replace is in incremental status.