How To Fix SCWN813 - Could not receive HTTP for &1: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SCWN - Messages Note installation and management

• Message number: 813

• Message text: Could not receive HTTP for &1: &2

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 SCWN813 - Could not receive HTTP for &1: &2 ?

  The SAP error message SCWN813, which states "Could not receive HTTP for &1: &2," typically indicates an issue with the HTTP communication between the SAP system and an external service or system. The placeholders &1 and &2 usually represent specific identifiers related to the HTTP request, such as the URL or service name.
  Causes:
  
  Network Issues: There may be network connectivity problems preventing the SAP system from reaching the external service.
  Service Unavailability: The external service might be down or not responding.
  Incorrect Configuration: The HTTP destination in the SAP system may be incorrectly configured (e.g., wrong URL, missing authentication).
  Firewall Restrictions: Firewalls or security settings may be blocking the HTTP request.
  Timeouts: The request may be timing out due to slow response times from the external service.
  Proxy Settings: If a proxy is required to access the external service, it may not be configured correctly in the SAP system.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the external service. You can use tools like ping or telnet to test connectivity.
  Verify Service Status: Check if the external service is up and running. You can do this by accessing the service directly through a web browser or using tools like curl.
  Review HTTP Destination Configuration:
  
  Go to transaction SM59 in SAP.
  Check the configuration of the HTTP destination (RFC destination) for correctness, including the URL, authentication method, and any required parameters.
  
  
  Check Firewall Settings: Ensure that there are no firewall rules blocking the HTTP requests from the SAP system to the external service.
  Increase Timeout Settings: If the external service is slow, consider increasing the timeout settings in the HTTP destination configuration.
  Proxy Configuration: If a proxy is needed, ensure that it is correctly configured in the SAP system. This can also be checked in transaction SM59.
  Check SAP Notes: Look for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: 
  
  SM59: To manage RFC destinations.
  SICF: To manage HTTP services.
  
  
  Logs: Check the application logs (transaction SLG1) for more detailed error messages that might provide additional context.
  SAP Community: Consider searching or posting in the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the SCWN813 error in your SAP system.