How To Fix /IWFND/CM_740_EXTNS009 - Websocket connection started

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_740_EXTNS -

• Message number: 009

• Message text: Websocket connection started

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 /IWFND/CM_740_EXTNS009 - Websocket connection started ?

  The SAP error message /IWFND/CM_740_EXTNS009 typically relates to issues with WebSocket connections in the context of SAP Gateway and OData services. This error can occur when there are problems establishing or maintaining a WebSocket connection, which is often used for real-time communication in applications.
  Cause
  The error can be caused by several factors, including:
  
  Network Issues: Problems with the network configuration, such as firewalls or proxies blocking WebSocket connections.
  Server Configuration: Incorrect settings in the SAP Gateway or backend system that prevent WebSocket connections from being established.
  Browser Compatibility: Some older browsers may not fully support WebSocket connections.
  SAP System Version: The version of the SAP system may not support the required WebSocket features.
  Resource Limitations: The server may be running out of resources (e.g., memory, CPU) to handle WebSocket connections.
  
  Solution
  To resolve the error, you can try the following steps:
  
  
  Check Network Configuration:
  
  Ensure that firewalls or proxies are not blocking WebSocket traffic. WebSocket typically uses port 80 (HTTP) or 443 (HTTPS).
  Test the connection using tools like telnet or curl to see if the WebSocket endpoint is reachable.
  
  
  
  Review Server Settings:
  
  Check the configuration of the SAP Gateway and ensure that WebSocket support is enabled.
  Review the settings in the SAP Cloud Platform or any other relevant configuration settings.
  
  
  
  Update Browser:
  
  Ensure that you are using a modern browser that supports WebSockets. Update to the latest version if necessary.
  
  
  
  Check SAP System Version:
  
  Verify that your SAP system is up to date and supports the required WebSocket features. Consider applying any relevant patches or updates.
  
  
  
  Monitor Server Resources:
  
  Check the server's resource usage to ensure it is not overloaded. If necessary, optimize performance or scale resources.
  
  
  
  Review Logs:
  
  Check the SAP Gateway logs and any relevant application logs for more detailed error messages that could provide additional context.
  
  
  
  Consult SAP Notes:
  
  Look for any relevant SAP Notes or documentation that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information
  
  WebSocket Protocol: Understand how WebSockets work and their role in real-time applications.
  SAP Gateway: Familiarize yourself with the SAP Gateway architecture and how it handles OData services and WebSocket connections.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying these solutions, consider reaching out to SAP support for further assistance.