Symptoms

Consider the following scenario:

  • You apply the SWIFT Message Pack on Microsoft BizTalk Server.

  • You try to process a service message that has a type indicator of 21.


In this scenario, you may receive the following error message:

Publishing failed message to MessageBox. Details: The single message of type S21_FIN_ACKNAK, whose Interchange ID is {InterchangeID}, has been marked as A4SWIFT_Failed=True in the MessageBox database by the SWIFT Disassembler.

This message failed with 0 parse errors, 1 XML validation errors, and 0 BRE validation errors.

Error details can be extracted from the failed message in the MessageBox database by subscribing to messages where A4SWIFT_Failed=True.


Cause

This issue occurs because the MTS21_FIN_ACKNAK.xsd schema in the Microsoft.Solutions.FinancialServices.SWIFT.FrrSchemas.dll file of Message Pack requires the message to have a trailer block. However, the service message that has a type indicator of 21 does not have a trailer, and the SWIFT User Handbook indicates that the trailer block is optional for this message type.

Cumulative update information

The fix that resolves this issue is included in Cumulative Update 2 for SWIFT Message Pack 2015.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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