Error 0xC00E009C

Value: -1072824164 | 0xC00E009C | 3222143132

What does it mean ?

MQ_ERROR_MESSAGE_LOCKED_UNDER_TRANSACTION  
The message is currently being processed under a transaction. Till the transaction outcome is determined, the message cannot be processed in any other transaction.
Value: 156 | 0x009C | 0b0000000010011100

Where does it come from ?

FACILITY_MSMQ  
Microsoft Message Queue (MSMQ)
Value: 14 | 0x00E | 0b00001110

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