How To Fix /IWFND/CM_COS048 - The host name starting with '&1' is too long. Routing might not work.

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_COS -

• Message number: 048

• Message text: The host name starting with '&1' is too long. Routing might not work.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_COS048 - The host name starting with '&1' is too long. Routing might not work. ?

  The SAP error message /IWFND/CM_COS048 indicates that there is an issue with the hostname being used in the configuration of your SAP system. Specifically, the error states that the hostname starts with a certain character (represented by &1) and is too long, which can lead to routing issues.
  Cause:
  
  Hostname Length: The hostname specified in the configuration exceeds the maximum allowed length. In many systems, the maximum length for a hostname is typically 253 characters, but individual labels (the parts of the hostname separated by dots) can only be up to 63 characters.
  Invalid Characters: The hostname may contain invalid characters or start with a character that is not allowed.
  Configuration Issues: The hostname might be incorrectly configured in the SAP Gateway or in the system settings.
  
  Solution:
  
  Check Hostname Length: Verify the length of the hostname being used. Ensure that it does not exceed the maximum length allowed by your system.
  Modify Hostname: If the hostname is too long, consider shortening it. You can do this by renaming the host or adjusting the configuration in the SAP system.
  Review Configuration: Check the configuration settings in the SAP Gateway and ensure that the hostname is correctly specified. This can typically be found in transaction codes like SICF (for Internet Communication Framework) or SPRO (for customizing).
  Use Valid Characters: Ensure that the hostname only contains valid characters (letters, numbers, and hyphens) and does not start with a hyphen or contain spaces.
  Restart Services: After making changes to the hostname or configuration, restart the relevant SAP services to ensure that the changes take effect.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional guidance or updates related to this error message.
  Documentation: Refer to the official SAP documentation for guidelines on hostname configuration and best practices.
  Network Configuration: Ensure that your network configuration (DNS settings, etc.) is correctly set up to resolve the hostname.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis team or SAP support for further assistance.