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SAP B1 Knowledge Base

Sana Commerce 9.2
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Connection to SAP B1 Failed


Sana Web Service for SAP Business One


The error below may occur when you click "Test connection" in Sana Admin to check connection between Sana and SAP Business One:

"The server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error."

It occurs because of the wrong Web service configuration.


There is the <handlers> section in the "Web.config" file of the Web service. There must be the handler like shown below with the following attributes:

  • resourceType
  • requireAccess
  • preCondition
<add name="SVC" path="*svc" verb="*" type="System.ServiceModel.Activation.ServiceHttpHandlerFactory, System.ServiceModel.Activation, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode" />

If it's different in your "Web.config" file, replace it with the one above.

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