DSNT457I The SUBSYSTEM NAME MUST BE DIFFERENT THAN THE PROC NAME
Explanation
Internal MVS restrictions require that the IRLM subsystem name be different than the procedure name.
This message is issued by the following panel: DSNTIPI
System action
The panel is redisplayed and the cursor is placed on the field in error.
User response
Change either the SUBSYSTEM NAME or the PROC NAME so these fields are unique with respect to each other.