S0C7 abend in program JSFB0041 at offset=31A

Q:

How do you fix S0C7 abend in program JSFB0041 at offset=31A when running the JSF 4.2 Purge job JSFDPURG or JSFDPRG2 (in step B0041)?

A:

Make sure KEEPDAYS in the 4.2 JSFIOP01 options module is numeric. JSF 4.2 expanded KEEPDAYS from 2 to 3 bytes, so the 4.2 JSFIOP01 source must be changed and assembled with the 4.2 JSFMOPNN macro.