How To Fix GW753 - Short and long router strings do not match, see dev_rd

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 753

• Message text: Short and long router strings do not match, see dev_rd

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 GW753 - Short and long router strings do not match, see dev_rd ?

  The SAP error message GW753 ("Short and long router strings do not match, see dev_rd") typically occurs in the context of SAP Gateway and is related to issues with the configuration of the SAP system's communication settings. This error indicates that there is a mismatch between the short and long router strings used in the system.
  Cause:
  
  Router String Mismatch: The short router string (used for local communication) and the long router string (used for remote communication) do not match. This can happen if the configuration settings for the SAP system are inconsistent.
  Incorrect Configuration: The settings in the instance profile or the SAP GUI might be incorrectly configured, leading to discrepancies between the two router strings.
  Network Issues: There may be underlying network issues that affect the communication between the SAP system and other systems.
  
  Solution:
  
  
  Check Router Strings:
  
  Go to transaction RZ10 to check the instance profile settings.
  Look for the parameters rdisp/routing and rdisp/mode to verify the router strings.
  Ensure that the short and long router strings are consistent.
  
  
  
  Update Profile Parameters:
  
  If you find discrepancies, update the instance profile with the correct router strings.
  After making changes, you will need to restart the SAP instance for the changes to take effect.
  
  
  
  Check dev_rd Log:
  
  The error message suggests checking the dev_rd log file for more detailed information about the error.
  Use transaction SM37 to check for any related job logs or errors that might provide additional context.
  
  
  
  Network Configuration:
  
  Ensure that the network configuration is correct and that there are no firewalls or network issues preventing communication.
  Verify that the SAP Gateway is properly configured to handle requests.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP you are using for any additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  System Logs: Regularly monitor system logs for any recurring issues that may indicate a broader problem with the SAP system configuration.
  
  By following these steps, you should be able to identify and resolve the GW753 error in your SAP system. If the problem persists, consider reaching out to SAP support for further assistance.