How To Fix SD104 - RFC error

SAP Error Message - Details

• Message type: E = Error

• Message class: SD - Online doc., terminology, translation, help

• Message number: 104

• Message text: RFC error

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD104 - RFC error ?

  The SAP error message SD104 typically indicates an RFC (Remote Function Call) error, which can occur in various scenarios, particularly when there is an issue with communication between SAP systems or between an SAP system and an external system. The error message may look something like this:
  SD104: RFC error occurred
  Causes of SD104 RFC Error
  
  
  Network Issues: Problems with the network connection between the SAP systems can lead to RFC errors. This could be due to firewalls, routing issues, or network outages.
  
  
  Configuration Issues: Incorrect configuration of RFC destinations in the SAP system can cause communication failures. This includes incorrect settings in the transaction SM59.
  
  
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to execute the requested function.
  
  
  System Availability: The target system may be down or not reachable, leading to an RFC error.
  
  
  Resource Limitations: The system may be experiencing resource limitations, such as memory or CPU constraints, which can affect its ability to process RFC calls.
  
  
  Version Compatibility: Incompatibility between different versions of SAP systems can also lead to RFC errors.
  
  
  Solutions to SD104 RFC Error
  
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or traceroute to diagnose network issues.
  
  
  Verify RFC Destination: Go to transaction SM59 and check the configuration of the RFC destination. Ensure that the connection parameters (like target host, system number, client, user, and password) are correct.
  
  
  Check Authorizations: Ensure that the user credentials used for the RFC call have the necessary authorizations. You can check this in transaction SU01 or PFCG.
  
  
  System Status: Check the status of the target system to ensure it is up and running. You can do this by logging into the target system or checking system logs.
  
  
  Review System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that might provide more context about the RFC error.
  
  
  Monitor System Resources: Use transaction SM50 or SM66 to monitor system resources and ensure that the system is not overloaded.
  
  
  Check for Updates: Ensure that both systems are running compatible versions of SAP and that any necessary patches or updates have been applied.
  
  
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the SD104 error.
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SM59: RFC Destinations
  SM21: System Log
  SU01: User Maintenance
  SM50 / SM66: Process Overview
  
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs or screenshots.
  
  
  By following these steps, you should be able to diagnose and resolve the SD104 RFC error in your SAP environment.