How To Fix MSGSERVER020 - RFC error has occurred

SAP Error Message - Details

• Message type: E = Error

• Message class: MSGSERVER - Messages for Message Server

• Message number: 020

• Message text: RFC error has 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 MSGSERVER020 - RFC error has occurred ?

  The SAP error message MSGSERVER020, which indicates that an RFC (Remote Function Call) error has 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:
  
  
  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 Errors: Incorrect configuration of RFC destinations in the SAP system (transaction SM59) can lead to communication failures.
  
  
  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.
  
  
  Resource Limitations: The SAP system may be experiencing resource limitations (e.g., memory, CPU) that prevent it from processing the RFC call.
  
  
  Version Compatibility: Incompatibility between different versions of SAP systems can also lead to RFC errors.
  
  
  Solutions:
  
  
  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.
  
  
  Review RFC Destination Configuration: 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 User Authorizations: Verify that the user credentials used for the RFC connection have the necessary authorizations to perform the required actions.
  
  
  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.
  
  
  Monitor System Resources: Use transaction SM50 or SM66 to monitor the system's performance and check for any resource bottlenecks.
  
  
  Check SAP Notes: Look for relevant SAP Notes that may address known issues related to RFC errors. You can search for notes in the SAP Support Portal.
  
  
  Review Logs: Check the system logs (transaction SM21) and the developer trace files (transaction ST11) for more detailed error messages that can provide insights into the cause of the RFC error.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SM50 / SM66: Process Overview
  ST11: Developer Traces
  
  
  
  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 relevant logs and the context in which the error occurred.
  
  
  By systematically checking these areas, you should be able to identify and resolve the cause of the MSGSERVER020 RFC error.