DFS1953 COMMAND NOT APPLICABLE

The entered command was not applicable to the present state of the system. This message is issued for one of the following reasons:

• A command is entered that operates on LUNAME/TPNAME and the current IMS system is not operating with a z/OS® supporting APPC.
• A command was entered to put IMS in a state which IMS is already in. The command thus has no effect.
• The DFSAPPC message switching service was entered on an IMS system that is not running with a z/OS supporting APPC.
• A command was entered to change the APPC timeout value and the current z/OS release does not support APPC timeout.