How To Fix BT840 - Invalid server name: &

SAP Error Message - Details

• Message type: E = Error

• Message class: BT - Background processing messages

• Message number: 840

• Message text: Invalid server name: &

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 BT840 - Invalid server name: & ?

  The SAP error message BT840 "Invalid server name: &" typically indicates that there is an issue with the server name configuration in your SAP system. This error can occur in various contexts, such as when trying to connect to a backend system, during system configuration, or when setting up communication between different SAP systems.
  Causes:
  
  Incorrect Server Name: The server name specified in the configuration is either misspelled or does not exist.
  Network Issues: There may be network connectivity issues preventing the SAP system from resolving the server name.
  Configuration Errors: The server name might not be properly configured in the relevant SAP transaction or configuration settings.
  DNS Issues: If the server name relies on DNS resolution, there may be issues with the DNS server or the entry for the server name may be missing.
  SAP Router Configuration: If using an SAP router, the router configuration might be incorrect or the server name is not properly defined in the router settings.
  
  Solutions:
  
  Verify Server Name: Check the server name in the configuration settings. Ensure that it is spelled correctly and matches the actual server name.
  Check Network Connectivity: Ensure that the SAP system can reach the server. You can use tools like ping or traceroute to test connectivity.
  Review Configuration Settings: Go through the relevant configuration settings in SAP (e.g., RFC destinations, logical systems) to ensure that the server name is correctly defined.
  DNS Configuration: If the server name is supposed to be resolved via DNS, check the DNS settings and ensure that the server name is correctly registered.
  SAP Router Settings: If applicable, review the SAP router configuration to ensure that the server name is correctly defined and that the router is functioning properly.
  Check Logs: Review the SAP system logs (transaction SM21) for any additional error messages or information that might provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SM59 (for RFC destinations) or SICF (for HTTP services) to check and configure the server settings.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to the official SAP documentation for guidance on configuring server connections and troubleshooting connectivity issues.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis team or SAP support for further assistance.