How To Fix /SCMTMS/MULTIPLE_WND007 - WebSocket instantiation failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/MULTIPLE_WND -

• Message number: 007

• Message text: WebSocket instantiation 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/MULTIPLE_WND007 - WebSocket instantiation failed ?

  The SAP error message /SCMTMS/MULTIPLE_WND007 indicates that there is an issue with WebSocket instantiation in the SAP Transportation Management System (TM). This error typically arises when there are multiple instances of a WebSocket connection being attempted, which can lead to conflicts or failures in establishing a connection.
  Causes:
  
  Multiple WebSocket Connections: The error may occur if there are multiple attempts to open WebSocket connections simultaneously, which can happen due to user actions or application logic.
  Browser Issues: Sometimes, the browser may have issues with WebSocket connections, especially if there are extensions or settings that interfere with WebSocket functionality.
  Network Issues: Network configurations or firewalls may block WebSocket connections, leading to instantiation failures.
  SAP System Configuration: Incorrect configuration in the SAP system or the TM application can also lead to this error.
  
  Solutions:
  
  Refresh the Page: Sometimes, simply refreshing the browser page can resolve temporary issues with WebSocket connections.
  Check for Multiple Tabs: Ensure that you do not have multiple tabs or windows open that are trying to establish WebSocket connections to the same service.
  Clear Browser Cache: Clearing the browser cache and cookies can help resolve issues related to stale connections.
  Browser Compatibility: Ensure that you are using a compatible browser version. Some older browsers may not support WebSocket connections properly.
  Network Configuration: Check your network settings and firewall configurations to ensure that WebSocket connections are not being blocked.
  SAP Notes and Support: Check for any relevant SAP Notes or patches that may address this specific error. SAP support may have updates or fixes available.
  System Logs: Review the system logs for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  WebSocket Protocol: WebSockets are a protocol for full-duplex communication channels over a single TCP connection, commonly used in real-time web applications.
  SAP TM Documentation: Refer to the official SAP Transportation Management documentation for more details on WebSocket usage and configuration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.