How To Fix /SAPAPO/MA675 - System error creating RFC destination 'CALL_MLR'

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MA -

• Message number: 675

• Message text: System error creating RFC destination 'CALL_MLR'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MA675 - System error creating RFC destination 'CALL_MLR' ?

  The SAP error message /SAPAPO/MA675 System error creating RFC destination 'CALL_MLR' typically indicates an issue with the Remote Function Call (RFC) destination that is required for certain operations in SAP Advanced Planning and Optimization (APO). This error can arise due to various reasons, including configuration issues, network problems, or authorization issues.
  Causes:
  
  RFC Destination Configuration: The RFC destination 'CALL_MLR' may not be correctly configured in the SAP system. This could include missing parameters or incorrect settings.
  Network Issues: There may be network connectivity problems between the systems involved in the RFC call.
  Authorization Issues: The user or service account attempting to create or use the RFC destination may not have the necessary authorizations.
  System Availability: The target system that the RFC destination points to may be down or not reachable.
  SAP Notes: There may be relevant SAP Notes that address specific bugs or issues related to this error.
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Look for the RFC destination 'CALL_MLR' and check its configuration.
  Ensure that the connection type, target host, and system number are correctly set.
  Test the connection to see if it is working properly.
  
  
  
  Network Connectivity:
  
  Verify that there are no network issues preventing communication between the systems.
  Check firewall settings and ensure that the necessary ports are open.
  
  
  
  Authorization Check:
  
  Ensure that the user or service account has the necessary authorizations to create and use the RFC destination.
  Check the roles and profiles assigned to the user.
  
  
  
  System Availability:
  
  Confirm that the target system is up and running.
  Check for any scheduled maintenance or downtime that might affect connectivity.
  
  
  
  Review SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or fixes for this error.
  
  
  
  Consult Logs:
  
  Check the system logs (transaction SM21) and the developer trace (transaction ST22) for any additional error messages that might provide more context.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SU01: User Maintenance (to check user authorizations)
  
  
  
  SAP Support: If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance, providing them with detailed information about the error and the steps you have already taken.
  
  
  By following these steps, you should be able to diagnose and resolve the issue related to the RFC destination 'CALL_MLR'.