RfcComunicationException In Invoke SAP BAPI

Invoke SAP BAPI Activity is throwing RfcCommunicationException when searching for a BAPI.

Error Message:

Root Cause: The issue could be due to a version difference in SAP NCo, SAP Connector for Microsoft .NET based on the following reason,

  • The error message stems from a method ("findAlternate") in the connector SAP.Middleware.Connector.RfcRepository

Some other similar issues pointing to the same root cause


  1. Update the .NET connector version to the latest
  2. Verify by installing it with the option "Register WMI provider and install assemblies to GAC" .