How To Fix SCWN812 - Could not send HTTP for &1: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SCWN - Messages Note installation and management

• Message number: 812

• Message text: Could not send 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 SCWN812 - Could not send HTTP for &1: &2 ?

  The SAP error message SCWN812, which states "Could not send HTTP for &1: &2," typically indicates an issue with sending an HTTP request from the SAP system. The placeholders &1 and &2 usually represent specific details about the request or the error encountered.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target server.
  Incorrect URL: The URL being accessed may be incorrect or malformed.
  Server Unavailability: The target server may be down or not reachable.
  Firewall Restrictions: Firewalls or security settings may be blocking the HTTP request.
  Proxy Configuration: If a proxy is required for HTTP requests, it may not be configured correctly in the SAP system.
  Authorization Issues: The user or service account may not have the necessary permissions to access the target resource.
  Timeouts: The request may be timing out due to slow response times from the target server.
  
  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 URL: Double-check the URL being used in the HTTP request for correctness.
  Server Status: Confirm that the target server is up and running and can accept requests.
  Firewall Settings: Review firewall rules to ensure that they allow traffic from the SAP system to the target server.
  Proxy Configuration: If a proxy is needed, ensure that it is correctly configured in the SAP system. This can be done in transaction SMICM (ICM Monitor) under the "Proxy" settings.
  Check Authorizations: Ensure that the user or service account has the necessary permissions to perform the HTTP request.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the HTTP client configuration.
  
  Related Information:
  
  Transaction Codes: You may want to check the HTTP settings in transaction SMICM (ICM Monitor) and SICF (HTTP Service Hierarchy Maintenance).
  Logs: Review the application logs (transaction SLG1) for more detailed error messages that may provide additional context.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue 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.