When you use BCI (the Batch Command Interface) you may get error Message N95703 NO AVAILABLE SESSIONS (NO VTAM ACB'S) - RETRY LATER when submitting the BCI-Job.
Environment
Release: Component: SACCES
Resolution
Make sure that you specify an LUNAME or an LUPREF (LU Prefix) when issuing the BCILOGON command:
When the LUPREF operand is used, a three-digit number is appended to the LU prefix value. Initially that number is set to 001 and an attempt to open ACB luprefix001 is performed. If you do not specify the LUNAME and LUPREF operands, then an LUPREF of NMBCI is assumed. In any way, the ACB must be accessible from the Netmaster Region.