DFS3612I OPTIONAL xxxxxxxx SUBSYSTEM EXIT NOT PRESENT.

Explanation

IMS attempted to start an optional external subsystem exit and found that the external subsystem did not supply that exit. This message is sent when the following exit is absent: 
xxxxxxxx = command

System action

If one of the optional exits are not present, IMS performs this command: 
xxxxxxxx = command
IMS runs the command exit when a valid /SSR command is entered from a terminal or an automated operator interface (AOI) application. If the exit is not present, IMS indicates this problem by this message. The /SSR command and the external subsystem command are ignored. IMS continues normal operation.

Operator response

Notify the system programmer.

Programmer response

This problem might be an external symptom of an IMS or external subsystem logic error. First check the external subsystem documentation to ensure that it furnishes a command exit. If it does, ensure that the subsystem in question is started. If the problem still exists, a memory dump is required to aid in isolating the problem. Use the OS MODIFY (F) command to terminate the IMS external subsystem mother task (ESSM).

Problem determination

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