How To Fix /UI2/BASIS_RFC003 - Error during call of function module &1 with RFC destination &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/BASIS_RFC -

• Message number: 003

• Message text: Error during call of function module &1 with RFC destination &2

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/BASIS_RFC003 - Error during call of function module &1 with RFC destination &2 ?

  The SAP error message /UI2/BASIS_RFC003 indicates that there was an error during the call of a function module with a specified RFC (Remote Function Call) destination. This error can occur for various reasons, and understanding the cause is essential for troubleshooting and resolving the issue.
  Possible Causes:
  
  
  RFC Destination Configuration: The RFC destination specified in the error message may not be correctly configured. This includes incorrect connection parameters, such as the target system, user credentials, or network settings.
  
  
  Network Issues: There may be network connectivity issues between the SAP system and the target system specified in the RFC destination. This could be due to firewall settings, network outages, or incorrect routing.
  
  
  Authorization Issues: The user credentials used in the RFC destination may not have the necessary authorizations to execute the function module.
  
  
  Function Module Issues: The function module being called may not exist in the target system, or it may have been changed or deactivated.
  
  
  System Performance: The target system may be experiencing performance issues, leading to timeouts or failures in processing the RFC call.
  
  
  Version Compatibility: There may be compatibility issues between the source and target systems, especially if they are running different versions of SAP.
  
  
  Solutions:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination mentioned in the error message.
  Verify the connection parameters, including the target system, user credentials, and connection type.
  
  
  
  Test Connection:
  
  In transaction SM59, use the "Test Connection" option to check if the RFC destination is reachable and functioning correctly.
  
  
  
  Review Authorizations:
  
  Ensure that the user specified in the RFC destination has the necessary authorizations to execute the function module in the target system.
  
  
  
  Check Function Module:
  
  Verify that the function module being called exists in the target system and is active.
  Check for any changes or deactivations that may have occurred.
  
  
  
  Network Troubleshooting:
  
  Check for any network issues that may be affecting connectivity between the systems.
  Ensure that firewalls or security settings are not blocking the connection.
  
  
  
  Monitor System Performance:
  
  Check the performance of the target system to ensure it is not overloaded or experiencing issues.
  
  
  
  Consult Logs:
  
  Review the system logs (transaction SM21) and the RFC trace (transaction SM58) for additional error messages or details that can provide more context about the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  SM58: Asynchronous RFC Monitor
  SE37: Function Module Maintenance
  
  
  
  Documentation: Refer to SAP Help Portal or SAP Notes for specific guidance related to the function module and RFC configuration.
  
  
  By following these steps, you should be able to identify the cause of the /UI2/BASIS_RFC003 error and implement the appropriate solution.