XRPUTMSG
CICS-supplied transactions CEDA or CESN wait on a resource type of XRPUTMSG only during XRF takeover by the alternate CICS system. It can indicate either of these conditions:
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Data that is required by the transactions is held on a volume subject to MVS RESERVE locking, and another job currently has the lock.
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There is an error in the CICS availability manager.
If it seems clear that MVS RESERVE locking is not implicated, refer the problem to the IBM Support Center.