How To Fix SWK071 - HTTP connection to launch handler failed

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 071

• Message text: HTTP connection to launch handler failed

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWK071 - HTTP connection to launch handler failed ?

  The SAP error message SWK071, which states "HTTP connection to launch handler failed," typically occurs when there is an issue with the HTTP connection to the launch handler in the SAP system. This can happen in various scenarios, such as when trying to access certain functionalities in SAP Business Workflow or when using the SAP GUI.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the client or between the SAP system and the launch handler.
  Incorrect Configuration: The HTTP connection settings may not be correctly configured in the SAP system.
  Service Not Running: The HTTP service or the launch handler service may not be running or may have crashed.
  Firewall Restrictions: Firewalls or security settings may be blocking the HTTP requests.
  Incorrect URL: The URL configured for the launch handler may be incorrect or not reachable.
  SAP Kernel Issues: There may be issues with the SAP kernel version or patches that affect HTTP connections.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the client and the SAP server. You can use tools like ping or traceroute to diagnose network issues.
  Verify Configuration: Check the configuration settings for the HTTP connection in transaction SICF (SAP Internet Communication Framework) and ensure that the launch handler is correctly configured.
  Restart Services: If the HTTP service or the launch handler service is not running, restart them. You can do this in transaction SMICM (ICM Monitor).
  Check Firewall Settings: Ensure that there are no firewall rules blocking the HTTP traffic to the launch handler.
  Validate URL: Verify that the URL for the launch handler is correct and accessible. You can test the URL in a web browser to see if it responds.
  Review SAP Notes: Check for any relevant SAP Notes that may address known issues with the HTTP connection or the launch handler.
  Update SAP Kernel: If the issue persists, consider updating the SAP kernel to the latest version or applying relevant patches.
  
  Related Information:
  
  Transaction Codes: 
  
  SICF: To manage HTTP services.
  SMICM: To monitor and manage the Internet Communication Manager.
  SOST: To check the status of sent emails and messages.
  
  
  SAP Notes: Search for specific SAP Notes related to SWK071 or HTTP connection issues in the SAP Support Portal.
  Logs: Check the ICM logs for more detailed error messages that can provide additional context for troubleshooting.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.