FIX: "Unknown" error message for suspended EDI message instances in BizTalk Server 2010

View products that this article applies to.

Symptoms

Consider the following scenario:

You use native Electronic Data Interchange (EDI) components in Microsoft BizTalk Server 2010 to receive EDI messages.
You receive incoming EDI messages that use multiple schemas. For example, an incoming message uses the 5010 837P Multi schema.
The message fails at the EDI pipeline, and the EDI message instance is suspended.

In this scenario, no helpful error information is generated. However, an error message that resembles the following is logged in the BizTalk Server Administration Console event log:

An output message of the component "Unknown " in receive pipeline "Microsoft.BizTalk.Edi.DefaultPipelines.EdiReceive, Microsoft.BizTalk.Edi.EdiPipelines, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" is suspended due to the following error:

Unknown .

The sequence number of the suspended message is 1.

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Cause

This issue occurs because of an issue in the subdocument break-splitting logic that is used in the multiple schemas.

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Resolution

Cumulative update information

For BizTalk Server 2010

The hotfix that resolves this issue is included in cumulative update package 5 for BizTalk Server 2010.

For more information about how to obtain the cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:

2689458 Cumulative update package 5 for BizTalk Server 2010

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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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More Information

If you experience a similar issue in Microsoft BizTalk Server 2006 R2, click the following article number to view the article in the Microsoft Knowledge Base:

955303 FIX: The EDI description context property for the routing failure report has an unhelpful error description in BizTalk Server 2006 R2

For more information about error handling in the BizTalk Messaging Engine, go to the following MSDN website:

General information about error handling in the BizTalk Messaging Engine

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

2555976 Service pack and cumulative update list for BizTalk Server

For more information about BizTalk hotfixes and Service Pack support, click the following article number to view the article in the Microsoft Knowledge Base:

2003907 Information about BizTalk hotfixes and Service Pack support

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