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How To Fix S_UCON_LM090 - Plaese use UCON WebSocket RFC Setup


SAP Error Message - Details

  • Message type: E = Error

  • Message class: S_UCON_LM - Messages for Unified Connectivity LM process

  • Message number: 090

  • Message text: Plaese use UCON WebSocket RFC Setup

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  • 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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    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 S_UCON_LM090 - Plaese use UCON WebSocket RFC Setup ?

    The SAP error message S_UCON_LM090 indicates that there is an issue with the configuration of the UCON (User Connection) WebSocket RFC setup. This error typically arises when the system is unable to establish a WebSocket connection due to misconfiguration or missing settings.

    Cause:

    1. Missing Configuration: The UCON WebSocket RFC setup may not be properly configured in the SAP system.
    2. Network Issues: There may be network-related issues preventing the WebSocket connection from being established.
    3. Authorization Issues: The user may not have the necessary authorizations to access the UCON WebSocket.
    4. System Version: The SAP system may not be on a version that supports the UCON WebSocket functionality.

    Solution:

    1. Check Configuration:

      • Go to the transaction code UCON in your SAP system.
      • Verify that the WebSocket RFC setup is correctly configured. Ensure that all required parameters are set correctly.
    2. Network Configuration:

      • Ensure that the network settings allow for WebSocket connections. Check firewall settings and ensure that the necessary ports are open.
    3. User Authorizations:

      • Check the user roles and authorizations. Ensure that the user has the necessary permissions to access the UCON WebSocket.
    4. System Version:

      • Verify that your SAP system version supports UCON WebSocket. If not, consider upgrading to a version that does.
    5. Consult Documentation:

      • Refer to the official SAP documentation for UCON and WebSocket RFC setup for detailed configuration steps and requirements.
    6. SAP Notes:

      • Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration.
    7. Testing:

      • After making changes, test the connection again to ensure that the issue is resolved.

    Related Information:

    • UCON (User Connection): UCON is a framework in SAP that allows for the management of user connections, including WebSocket connections.
    • WebSocket: A protocol that provides full-duplex communication channels over a single TCP connection, commonly used in real-time web applications.
    • RFC (Remote Function Call): A communication interface in SAP that allows for communication between SAP systems and external applications.

    If the issue persists after following these steps, consider reaching out to SAP support for further assistance.

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