How To Fix RSAR641 - RFC Parameters: Server=&, system no=&, client=&, user=&

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 641

• Message text: RFC Parameters: Server=&, system no=&, client=&, user=&

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 RSAR641 - RFC Parameters: Server=&, system no=&, client=&, user=& ?

  The SAP error message RSAR641 typically relates to issues with Remote Function Call (RFC) parameters when trying to connect to a remote system. This error can occur in various scenarios, such as when using SAP Data Services, SAP BW, or during data extraction processes. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Incorrect RFC Destination: The RFC destination may not be correctly configured in the SAP system. This could include incorrect server name, system number, client, or user credentials.
  Network Issues: There may be network connectivity issues between the SAP systems involved.
  Authorization Issues: The user specified in the RFC connection may not have the necessary authorizations to perform the required operations.
  System Configuration: The target system may not be properly configured to accept connections from the source system.
  SAP Kernel or Version Mismatch: There may be compatibility issues between different SAP versions or kernels.
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Verify the configuration of the RFC destination (check the connection parameters, including server, system number, client, and user).
  Test the connection to ensure it is working correctly.
  
  
  
  Network Connectivity:
  
  Ensure that there are no firewall or network issues preventing communication between the systems.
  Use tools like ping or telnet to check connectivity to the target server.
  
  
  
  User Authorizations:
  
  Check the authorizations for the user specified in the RFC destination.
  Ensure that the user has the necessary roles and permissions to access the target system.
  
  
  
  System Configuration:
  
  Ensure that the target system is configured to accept connections from the source system.
  Check for any specific settings or parameters that may need to be adjusted.
  
  
  
  SAP Notes and Support:
  
  Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  If the issue persists, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  ST22: Dump Analysis (to check for any ABAP runtime errors)
  SLG1: Application Log (to check for logs related to the error)
  
  
  
  Documentation: Review SAP documentation related to RFC connections and troubleshooting.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to diagnose and resolve the RSAR641 error effectively.