DFS1963W XRF PARAMETERS MISSING OR INVALID IN MVS APPCPM MEMBER

Explanation

This message is issued because the USERVAR or ALTLU parameters are missing or invalid in the APPCPM member. The APPCPM member is used by z/OS® during startup of the APPC subsystem to specify options. z/OS also passes USERVAR and the ALTLU name to IMS when requested.