3.6.5.2.2.4 Receiving a TXUSER_ENLISTMENT_MTAG_ABORTREQDONE Message
When the transaction manager receives a TXUSER_ENLISTMENT_MTAG_ABORTREQDONE message, the transaction manager MUST perform the following actions:
If the connection state is Awaiting Abort Response:
Signal the Enlistment Rollback Complete event on the Core Transaction Manager Facet with the Enlistment object of the connection.
Set the connection state to Ended.
Otherwise, the message MUST be processed as an invalid message as specified in section 3.1.6.