Ensure that the CATALOG section of the DFSDFxxx member specifies CATALOG=Y, ACBMGMT=CATALOG and the alias name for the IMS catalog and, if the IMS catalog database is unregistered, that the DATABASE section of the DFSDFxxx member specifies the IMS catalog database names.
This parameter is optional. If it is not specified on the FMN1POPI macro statement, FM/IMS uses either the value specified on the FMN1POPD macro statement (if specified on that statement), or 000 (otherwise).
The user cannot override the value you specify for this parameter.