DFS3108I USER KEYWORD PARAMETER IS INVALID OR MISSING
Explanation
The USER keyword parameter was missing, was not a valid name, or was used in an invalid context. The name might be valid, but it might be a duplicate of another entered user name, or a name used with a node name to which the user is not allocated.
If this IMS system is part of a sysplex using the IMS Resource Manager, the user might be actively on or owned by another IMS system. As a result, the name would not be found on this IMS, even if it was statically defined to the system.
System action
The command is ignored.
Operator response
Check the syntax and restrictions of the command. Use the /DISPLAY ASMT command to note current assignments of users.