Incorrect Error Message When You Use SubmitSync to a Port with a Service Window Enabled

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This article was previously published under Q281170

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SYMPTOMS

When you use the IInterchange interface SubmitSync method, you may receive the following error message:

An error occurred in BizTalk Server.

Details:
The synchronous submission could not be completed because the channel matched a distribution list containing multiple messaging ports. Only one messaging port is allowed to be attached to the channel.

Code: C0C00161
Source: (null)

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CAUSE

This problem occurs when you use the SubmitSync method to process a document through a BizTalk Messaging port that has a Service Window enabled. The error message is by design, but the text of this error message is incorrect and misleading.

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WORKAROUND

To work around this problem, do one of the following:

Change your code to use Submit instead of SubmitSync.

-or-
Edit the Messaging Port properties to disable the use of the Service Window.

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STATUS

Microsoft has confirmed that this is a problem in BizTalk Server 2000.

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MORE INFORMATION

The SubmitSync method requires a response from BizTalk Server when it sends an interchange. When a messaging port uses a Service Window, there is no immediate response, so the SubmitSync call fails.

When you use Submit with a port that uses a Service Window, the interchange is sent to the Scheduled queue to wait for the Service Window time to become available.

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