Guest post: Misleading error message with SAP WCF custom adapter

In an IDOC receive scenario using the WCF custom adapter with SAP binding we received the following error messages:

The adapter "WCF-Custom" raised an error message. Details "Microsoft.Adapters.SAP.RFCException: Details: ErrorCode=RFC_EXCEPTION. ErrorGroup=RFC_ERROR_APPLICATION_EXCEPTION. SapErrorMessage=OBJECT_UNKNOWN. AdapterErrorMessage=Error returned by RfcCallReceiveEx while calling RFC: IDOCTYPE_READ_COMPLETE..

The solution is quite simple as it resides in the SAP setting for the RFC connection, transaction SM59. Switching the communication type to Unicode solved the problem.




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