When submitting a Package Shipment using PARM='&VNBCPARM SHIP &ZPREFIX ' which resolves to:
PARM='C1BMX000,20251010,13380815 SHIP USERID## '
the job fails with RC=16
C1BMX75E EXECUTION PARM IS TOO LONG
All Supported Releases
In the parm, the space following the &ZPREFIX is causing the error when the USERID is 8 digits.
In the .CSIQSENU(C1BMXJOB) member, remove the space after the &ZPREFIX.