3.8.5.1.2.1.8 Receiving a PARTNERTM_PROPAGATE_MTAG_COMMITREQ Message
When the Subordinate Transaction Manager Facet (section 1.3.3.3.5) receives a PARTNERTM_PROPAGATE_MTAG_COMMITREQ message, the Subordinate Transaction Manager Facet MUST perform the following actions:
If the connection state is Prepared:
Set the connection state to Committing.
Signal the Begin Commit on the Core Transaction Manager Facet event with the transaction object referenced by the Enlistment object referenced by this connection.
Otherwise, the message MUST be processed as an invalid message as specified in section 3.1.6.