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Consider the following scenario:

  • You use Microsoft BizTalk Server Accelerator for SWIFT - Message Pack 2019.

  • You use MT300 or MT304 Swift messages in your BizTalk application.

In this scenario, you notice that the Network Rule T78 Policy may be violated unless all the codes are present. This is because Swift has changed the validation rules for MT300 and MT304 in Message Pack 2019 with a "one or more of the following codes must be used" message.


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


The fix for this problem is available in the following update from the Microsoft Download Center:

Download Cumulative Update 1 for BizTalk A4Swift Message Pack 2019


For information about the service packs and cumulative update list for BizTalk Server, see the following article in the Microsoft Knowledge Base:

2555976 Service pack and cumulative update list for BizTalk Server

For more information about BizTalk Server hotfixes, see the following article in the Microsoft Knowledge Base:

2003907 Information about BizTalk hotfixes and Cumulative Update support

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