How To Fix /IWFND/CM_MGW002 - The RFC call was not successful for unknown reasons

/IWFND/CM_MGW002 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_MGW -

• Message number: 002

• Message text: The RFC call was not successful for unknown reasons

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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/IWFND/CM_MGW002 - Details

• The SAP error message /IWFND/CM_MGW002 The RFC call was not successful for unknown reasons typically occurs in the context of SAP Gateway and OData services when there is an issue with the Remote Function Call (RFC) to the backend system. This error can arise from various underlying causes, and troubleshooting it may require a systematic approach. Here are some common causes, potential solutions, and related information:
  Common Causes
  
  
  Network Issues: There may be network connectivity problems between the SAP Gateway and the backend system.
  
  
  Authorization Issues: The user executing the OData service may not have the necessary authorizations to perform the requested operation.
  
  
  Backend System Errors: The backend system may be down, or there may be issues with the specific function module being called.
  
  
  
  Configuration Issues: Incorrect configuration of the RFC destination in the SAP Gateway system can lead to this error.
  
  
  Timeouts: The RFC call may be timing out due to long processing times in