Abend codes provide a notice that the system abnormally terminated. Some PowerExchange components issue a single abend code for all abends. Other components issue different abend codes with each abend message also providing a reason code that explains the abend. PowerExchange also issues abend codes that are created by the z/OS operating system or another IBM product. For explanations of these abend codes, see the appropriate IBM z/OS, IMS, VSAM, or DB2 documentation.