Customer has upgraded JARSMS r11.0 on z/OS v1.10 to JARSMS r12.7 on z/OS v2.1.
He is using JARSMS r12.7 with SMFEXIT.
He has made some confirmation test but S0C1 abend occured.
The exit was originally produced and supported out of Japanese office, and was produced when customers were using an operating system that produced non-standard SMF records that JARS could not process. The exit would modify these records so that JARS could handle them.
Since the customer is now using z/OS 2.1 and has standard SMF records being produced, the exit is no longer needed.