3.3.5.3.1.2 Receiving a TXUSER_GETTXDETAILS_MTAG_TX_NOT_FOUND Message
When the application receives a TXUSER_GETTXDETAILS_MTAG_TX_NOT_FOUND message, the application MUST perform the following actions:
If the connection state is Awaiting Response:
Return a failure result to the higher-layer business logic.
Set the connection state to Ended.
Otherwise, the message MUST be processed as an invalid message as specified in section 3.1.6.