Transaction tranid cannot be run as another task is currently executing an RDO related function. Only a single instance of RDO can run in this region. Enqueue holder is userid.
Explanation
The identified transaction (typically CEDA) is a
serial resource. Only one of these transactions
may be running in a CICSĀ® Configuration Manager Server region.
System action
CICS Configuration Manager processing continues normally.
User response
Retry the action when the Transaction is no
longer in use.