WCF-SAP Adapter error: The parameter Program Id required for SAP Inbound Handler was not specified

Recently while I was testing an integration solution on a client that uses a WCF-SAP adapter to receive an IDOC from the SAP system I got the following error:

The Messaging Engine failed to add a receive location “IN_IDOC_SAP” with URL “sap://CLIENT=003;LANG=EN;@a/ip-addres/00?ListenerGwHost=ip-address&ListenerGwServ=sapgw00&ListenerProgramId=name” to the adapter “WCF-SAP”. Reason: “Microsoft.ServiceModel.Channels.Common.ConnectionException: The parameter Program Id required for SAP Inbound Handler was not specified.

I knew I had this error in the past. Still, I couldn’t remember the reason immediately 🙂 – this is one of the main reasons I often blog about the errors I face and solutions I found, my blog serves as my notes, and I’m one of the primary consumers of my blog.


Of course, and as always, there may be several reasons to face this problem, but in my case, the reason was quite simple.

If you pay attention to the URI on the error message and that highlight below:

  • sap://CLIENT=003;LANG=EN;@a/ip-addres/00?ListenerGwHost=ip-address&ListenerGwServ=sapgw00&ListenerProgramId=name

You will see that we are using the ampersand as an HTML entity (&) and we cannot in this case we need to use only the character &.


To solve this issue, you need to fix the URI to use the character &, instead of the HTML entity (&):

  • sap://CLIENT=003;LANG=EN;@a/ip-addres/00?ListenerGwHost=ip-address&ListenerGwServ=sapgw00&ListenerProgramId=name
Author: Sandro Pereira

Sandro Pereira lives in Portugal and works as a consultant at DevScope. In the past years, he has been working on implementing Integration scenarios both on-premises and cloud for various clients, each with different scenarios from a technical point of view, size, and criticality, using Microsoft Azure, Microsoft BizTalk Server and different technologies like AS2, EDI, RosettaNet, SAP, TIBCO etc. He is a regular blogger, international speaker, and technical reviewer of several BizTalk books all focused on Integration. He is also the author of the book “BizTalk Mapping Patterns & Best Practices”. He has been awarded MVP since 2011 for his contributions to the integration community.

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