How To Fix SWN065 - HTTP error & when creating message

SAP Error Message - Details

• Message type: E = Error

• Message class: SWN - WF Notif: Messages

• Message number: 065

• Message text: HTTP error & when creating message

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 SWN065 - HTTP error & when creating message ?

  The SAP error message SWN065 typically indicates an HTTP error encountered when trying to send notifications via the SAP Workflow Notification (SWN) service. This error can occur for various reasons, and understanding the cause and potential solutions can help resolve the issue.
  Causes of SWN065 HTTP Error
  
  
  Network Issues: There may be network connectivity problems between the SAP system and the target URL where notifications are being sent.
  
  
  Incorrect Configuration: The configuration settings for the SAP Workflow Notification may be incorrect, including the URL, authentication details, or other parameters.
  
  
  Service Unavailability: The target service (e.g., an external web service or application) may be down or not reachable.
  
  
  Firewall or Security Settings: Firewalls or security settings may be blocking the HTTP requests from the SAP system.
  
  
  HTTP Protocol Issues: There may be issues related to the HTTP protocol version being used (e.g., HTTP/1.1 vs. HTTP/2).
  
  
  SSL/TLS Issues: If the communication is over HTTPS, there may be issues with SSL/TLS certificates, such as expired certificates or untrusted certificate authorities.
  
  
  Solutions to SWN065 HTTP Error
  
  
  Check Network Connectivity: Ensure that the SAP system can reach the target URL. You can use tools like ping or telnet to test connectivity.
  
  
  Review Configuration: Verify the configuration settings in transaction SWN1 (for Workflow Notification) to ensure that the URL and other parameters are correct.
  
  
  Check Service Availability: Ensure that the target service is up and running. You can try accessing the URL directly from a web browser or using tools like curl or Postman.
  
  
  Firewall and Security Settings: Check firewall rules and security settings to ensure that they allow outbound HTTP/HTTPS traffic from the SAP system to the target URL.
  
  
  Review HTTP Protocol Settings: If applicable, check the HTTP protocol settings in the SAP system and ensure they are compatible with the target service.
  
  
  SSL/TLS Configuration: If using HTTPS, check the SSL/TLS configuration. Ensure that the certificates are valid and trusted by the SAP system. You may need to import the certificate into the SAP trust store.
  
  
  Check SAP Notes: Look for any relevant SAP Notes that may address known issues or provide patches related to the SWN065 error.
  
  
  Debugging: If the issue persists, consider enabling HTTP trace in the SAP system to capture detailed logs of the HTTP requests and responses. This can help identify the specific cause of the error.
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SWN1: Workflow Notification Configuration
  SWN_SELSEN: Selection of Workflow Notifications
  SICF: Maintain HTTP Services (to check service availability)
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or solutions for the SWN065 error.
  
  
  Documentation: Review the official SAP documentation for Workflow Notifications and HTTP communication for best practices and troubleshooting steps.
  
  
  By following these steps, you should be able to identify and resolve the cause of the SWN065 HTTP error in your SAP system.