How To Fix SWN064 - Unable to create HTTP client object

SAP Error Message - Details

• Message type: E = Error

• Message class: SWN - WF Notif: Messages

• Message number: 064

• Message text: Unable to create HTTP client object

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 SWN064 - Unable to create HTTP client object ?

  The SAP error message SWN064: Unable to create HTTP client object typically occurs in the context of the SAP Notification Framework, particularly when trying to send notifications via the SAP Business Workflow or when using the SAPconnect service. This error indicates that the system is unable to establish an HTTP connection, which is necessary for sending notifications.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target server (e.g., an email server or a web service).
  Configuration Issues: The HTTP client settings in the SAP system may not be configured correctly. This includes settings for the HTTP destination or the HTTP client itself.
  Authorization Issues: The user or service account may not have the necessary permissions to create an HTTP client object.
  Missing or Incorrect HTTP Destination: The HTTP destination (defined in transaction SM59) may be missing, incorrectly configured, or inactive.
  SAP Kernel or Component Issues: There may be issues with the SAP kernel or specific components that handle HTTP requests.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Ensure that the SAP system can reach the target server. You can use tools like ping or telnet to test connectivity.
  
  
  
  Verify HTTP Destination Configuration:
  
  Go to transaction SM59 and check the configuration of the HTTP destination. Ensure that the destination is correctly set up and active.
  Test the connection from SM59 to see if it is successful.
  
  
  
  Review Authorization:
  
  Ensure that the user or service account has the necessary authorizations to create HTTP client objects. Check the roles and authorizations assigned to the user.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that might address this specific error. Sometimes, there are patches or updates that resolve known issues.
  
  
  
  Review System Logs:
  
  Check the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages or warnings that could provide more context.
  
  
  
  Update SAP Kernel:
  
  If the issue persists, consider updating the SAP kernel or relevant components to the latest version, as there may be bug fixes related to HTTP client functionality.
  
  
  
  Contact SAP Support:
  
  If none of the above solutions work, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Configuration of RFC and HTTP destinations.
  SICF: Configuration of Internet Communication Framework services.
  SWNCONFIG: Configuration of the SAP Workflow Notification settings.
  
  
  
  Documentation: Refer to the official SAP documentation for the Notification Framework and HTTP client configuration for more detailed guidance.
  
  
  By following these steps, you should be able to diagnose and resolve the SWN064 error in your SAP system.