How To Fix XT003 - Could not determine list of active SAP servers

SAP Error Message - Details

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 003

• Message text: Could not determine list of active SAP servers

What causes this issue?

An error occurred when the list of active SAP servers was accessed. The
message server may not be correctly installed.

System Response

Processing was terminated.

How to fix this error?

Make sure that your SAP system is correctly installed. You must be able
to display the list of SAP servers using transaction SM51.
Then repeat the configuration of the Transport Management System.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message XT003 - Could not determine list of active SAP servers ?

  The SAP error message XT003, which states "Could not determine list of active SAP servers," typically indicates an issue with the SAP system's ability to identify or connect to the active application servers in the SAP landscape. This can occur in various scenarios, such as when trying to log in to the SAP system or when executing certain transactions.
  Causes:
  
  Network Issues: Problems with the network connection between the client and the SAP application servers can prevent the system from retrieving the list of active servers.
  SAP Router Configuration: If the SAP router is not configured correctly, it may block access to the application servers.
  Instance Availability: If all application servers are down or not responding, the system will not be able to determine the list of active servers.
  Profile Parameters: Incorrect settings in the instance profile parameters (like rdisp/mshost or rdisp/mshost) can lead to this error.
  Load Balancer Issues: If a load balancer is used and it is misconfigured, it may not route requests correctly to the active servers.
  SAP Kernel Issues: Outdated or corrupted SAP kernel files can also lead to connectivity issues.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the client and the SAP application servers. You can use tools like ping or traceroute to diagnose network issues.
  Verify SAP Router Configuration: If you are using an SAP router, check its configuration to ensure it is set up correctly and is not blocking access to the application servers.
  Check Server Status: Use transaction SM51 to check the status of the application servers. Ensure that at least one server is active and responding.
  Review Instance Profile Parameters: Check the instance profile parameters in transaction RZ10 to ensure they are correctly configured. Pay special attention to parameters related to message server and load balancing.
  Load Balancer Configuration: If a load balancer is in use, verify its configuration to ensure it is correctly routing requests to the active application servers.
  Update SAP Kernel: If the issue persists, consider updating the SAP kernel to the latest version, as this may resolve underlying bugs or issues.
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: 
  
  SM51: To view the list of application servers and their statuses.
  RZ10: To manage instance profiles and parameters.
  RZ03: To check the system's configuration.
  
  
  SAP Support: If the issue cannot be resolved with the above steps, consider reaching out to SAP Support for further assistance, providing them with detailed logs and error messages.
  
  By following these steps, you should be able to diagnose and resolve the XT003 error in your SAP environment.