How To Fix TQ372 - Test RFC failed, rc=&

SAP Error Message - Details

• Message type: E = Error

• Message class: TQ - SAPup Messages

• Message number: 372

• Message text: Test RFC failed, rc=&

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TQ372 - Test RFC failed, rc=& ?

  The SAP error message TQ372, which states "Test RFC failed, rc=&", typically indicates that there is an issue with the Remote Function Call (RFC) connection between SAP systems. The "rc" (return code) will provide additional information about the nature of the failure.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems.
  Configuration Errors: The RFC destination may not be configured correctly in transaction SM59.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Availability: The target system may be down or not reachable.
  Firewall Restrictions: Firewalls may be blocking the required ports for RFC communication.
  Incorrect Parameters: The parameters set in the RFC destination may be incorrect or incomplete.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the target system is reachable from the source system.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Ensure that the connection type (e.g., TCP/IP) is correct and that the target host and service are properly defined.
  
  
  
  Test the Connection:
  
  In SM59, select the RFC destination and use the "Test Connection" button to see if the connection can be established successfully.
  
  
  
  Check User Authorizations:
  
  Ensure that the user specified in the RFC destination has the necessary authorizations to perform the required actions on the target system.
  
  
  
  Check System Status:
  
  Ensure that the target SAP system is up and running. You can check this by logging into the target system directly.
  
  
  
  Review Firewall Settings:
  
  If applicable, check the firewall settings to ensure that the necessary ports for RFC communication (usually port 3200 for SAP) are open.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages that may provide more context.
  
  
  
  Check for SAP Notes:
  
  Look for any relevant SAP Notes that may address known issues related to RFC connections.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SM21: System Log
  ST11: Developer Traces
  SU01: User Maintenance (to check user authorizations)
  
  
  
  Return Codes: The specific return code (rc) can provide more insight into the issue. Common return codes include:
  
  0: Success
  1: Error in connection
  2: User not authorized
  3: Target system not reachable
  
  
  
  By following these steps, you should be able to diagnose and resolve the TQ372 error in your SAP environment. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.