Application program failures

When an IMS application program abends, IMS issues message DFS554I (and in some cases message DFS555I) and then backs out all database changes made by the failing program to the last checkpoint, or to last point at which the program was scheduled. You must use the /START PROGRAM and /START TRANSACTION commands to restart the program and transaction after correcting the cause of the failure.

If an error occurs during database backout and restartable backout does not correct the problem, follow the procedures for database recovery before reactivating the program and transaction.