Microsoft KB Archive/295591

= PRB: No Receipt When You Use the Loopback Transport =

Article ID: 295591

Article Last Modified on 9/30/2003

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APPLIES TO


 * Microsoft BizTalk Server 2000 Standard Edition

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This article was previously published under Q295591



SYMPTOMS
When you use the Loopback transport on your BizTalk Messaging port, BizTalk Server may not generate a receipt even though your channel is configured to generate receipts.



CAUSE
When you use the Loopback transport, you must submit documents by using the synchronous method call SubmitSync. The SubmitSync method provides no mechanism for invoking a receipt channel within the same thread.



RESOLUTION
To receive receipts, you must use the asynchronous method call Submit.



STATUS
This behavior is by design.



MORE INFORMATION
The issue discussed in this article is not specific to the Loopback transport, and applies with any transport when SubmitSync is used. The Loopback transport requires that the document be submitted through the SubmitSync call. Therefore, it is most evident in this scenario. Use the Loopback transport when you want to have the response document returned to your application that called the SubmitSync method.

