How To Fix LM628 - RFC error occurred

SAP Error Message - Details

• Message type: E = Error

• Message class: LM - Treasury: Limit Management

• Message number: 628

• Message text: RFC error occurred

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message LM628 - RFC error occurred ?

  The SAP error message LM628, which indicates that an RFC (Remote Function Call) error occurred, can arise from various issues related to communication between SAP systems or between an SAP system and an external system. Here are some common causes, potential solutions, and related information:
  Causes of LM628 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 transaction SM59.
  
  
  Authorization Issues: The user credentials used for the RFC connection 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.
  
  
  Timeouts: If the RFC call takes too long to respond, it may time out, resulting in an error.
  
  
  Version Compatibility: Incompatibility between different versions of SAP systems can also lead to RFC errors.
  
  
  Solutions to LM628 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 type, target host, and system number are correctly configured.
  
  
  Test RFC Connection: In transaction SM59, you can test the RFC connection to see if it is working properly. This will help identify if the issue is with the connection itself.
  
  
  Check Authorizations: Ensure that the user used for the RFC connection has the necessary authorizations to perform the required actions.
  
  
  Review System Logs: Check the system logs (transaction SM21) and the developer trace (transaction ST22) for any additional error messages that might provide more context about the issue.
  
  
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the RFC destination configuration.
  
  
  Check System Status: Ensure that the target system is up and running. You can check the status of the system in transaction SM51.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that might address specific issues related to RFC errors. You can search for notes in the SAP Support Portal.
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SM51: List of Active Instances
  
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  Documentation: Review the official SAP documentation for more detailed information on RFC and troubleshooting RFC errors.
  
  
  By following these steps, you should be able to diagnose and resolve the LM628 RFC error in your SAP environment.