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Q: What is ISSUE ABEND?

Answer:
ISSUE ABEND requests dump without termination. EXEC CICS ISSUE ABEND. Diagnostic snapshot. Continue execution. Alternative to full ABEND. Debug technique.
issue abend dump
COBOL
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Q: What is GOBACK vs STOP RUN?

Answer:
STOP RUN terminates entire run unit (all programs). GOBACK returns to caller; if main program, acts like STOP RUN. Use GOBACK in subprograms to return control. STOP RUN from subprogram ends everything unexpectedly.
goback stop-run termination
CICS
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Q: What is HANDLE ABEND?

Answer:
HANDLE ABEND traps abends. EXEC CICS HANDLE ABEND PROGRAM(abend-prog) or LABEL(abend-para). Allows cleanup before termination. CANCEL removes handler. Use for graceful error handling.
abend handle recovery