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BizTalk Server HL7 pipelines can't be called from orchestration

  • Article

This article provides information about the issue where calling BizTalk Server HL7 pipelines directly from Orchestration fails.

Original product version:   BizTalk Server 2013, 2010
Original KB number:   2892768

Summary

In BizTalk Server, you can normally execute pipelines from an expression shape in an orchestration. However, this won't work with the BizTalk Accelerator for HL7 pipelines. The BTAHL72XReceive, BTAHL72XSend, BTAHL72XMLReceive, and BTAHL72XMLSend pipelines must be executed within a port. If you attempt to execute any of these pipelines from an Expression shape in an orchestration, unexpected behavior can result.

Workaround

The general workaround when not being able to call a pipeline from an orchestration is to send out the message via a send port and then receive it back into BizTalk via a receive location. The HL7 pipeline can be executed in the send port or receive location and the resulting message can be routed back to the same orchestration instance via a correlating receive.

Another option is to use a custom loopback adapter. It's a solicit-response send port that returns the same value it receives. The HL7 pipeline can be used with this two-way send port.