Systematic approach to identifying underlying issues in processes systems and operations

ABEND

Abnormal End

Enhanced Definition

An unexpected termination of a program or job due to an error condition. Common in batch processing environments where jobs fail before completion.

- Generates system completion codes (e.g., S0C7, S0C4) that indicate the type of error
- Can be caused by data errors, programming bugs, resource constraints, or system problems
- Produces diagnostic information including dumps and error messages
- May trigger automatic restart or recovery procedures
- S0C1 - Operation exception (invalid instruction)
- S0C4 - Protection exception (storage access violation)
- S0C7 - Data exception (invalid packed decimal data)
- S322 - Job or task exceeded CPU time limit
- S806 - Program not found in load library
- U0001-U4095 - User-defined completion codes

- Debugging application errors in production environments
- Identifying data quality issues causing job failures
- Monitoring system health and stability
- Triggering automated recovery procedures