How To Fix SWK054 - Invalid format for host name in launch handler (category &)

SAP Error Message - Details

• Message type: E = Error

• Message class: SWK - Messages for Workflow - Workplace Plug-In 4.0B

• Message number: 054

• Message text: Invalid format for host name in launch handler (category &)

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 SWK054 - Invalid format for host name in launch handler (category &) ?

  The SAP error message SWK054, which indicates "Invalid format for host name in launch handler (category &)," typically arises when there is an issue with the hostname format specified in the system configuration. This error is often encountered in the context of SAP's workflow or when launching external applications or services.
  Cause:
  
  
  Invalid Hostname Format: The hostname specified in the configuration does not conform to the standard hostname format. This could include:
  
  Special characters that are not allowed.
  Hostnames that are too long or too short.
  Missing or incorrect domain suffixes.
  
  
  
  Configuration Issues: The error may also stem from incorrect settings in the SAP system configuration, such as in the workflow settings or RFC destinations.
  
  
  Network Issues: If the hostname cannot be resolved due to DNS issues or network connectivity problems, this error may also occur.
  
  
  Solution:
  
  
  Check Hostname Format:
  
  Ensure that the hostname follows the standard naming conventions. A valid hostname should:
  
  Only contain alphanumeric characters, hyphens, and periods.
  Not start or end with a hyphen.
  Be between 1 and 253 characters long.
  
  
  Example of a valid hostname: my-server.example.com.
  
  
  
  Review Configuration Settings:
  
  Go to the relevant configuration settings in SAP (e.g., transaction codes like SWDD for workflows or SM59 for RFC destinations).
  Verify that the hostname is correctly specified and does not contain any typos or invalid characters.
  
  
  
  DNS Resolution:
  
  Check if the hostname can be resolved using DNS. You can use command-line tools like ping or nslookup to verify this.
  If the hostname cannot be resolved, ensure that the DNS settings on the server are correct.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues preventing access to the specified hostname.
  Check firewall settings or any network policies that might block access.
  
  
  
  SAP Notes and Documentation:
  
  Check SAP Notes for any specific patches or updates related to this error message. Sometimes, SAP releases notes that address known issues or provide additional guidance.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on configuring hostnames and troubleshooting workflow issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that might provide more context about the issue.
  
  By following these steps, you should be able to identify and resolve the SWK054 error in your SAP system.