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How To Fix TRUST050 - LDAP server does not exist


SAP Error Message - Details

  • Message type: E = Error

  • Message class: TRUST - Certificate Management

  • Message number: 050

  • Message text: LDAP server does not exist

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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.



    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 TRUST050 - LDAP server does not exist ?

    The SAP error message TRUST050 indicates that the LDAP (Lightweight Directory Access Protocol) server specified in the SAP system configuration does not exist or cannot be reached. This error typically arises when the system is trying to connect to an LDAP server for authentication or directory services, but the connection fails due to various reasons.

    Causes of TRUST050 Error

    1. Incorrect LDAP Server Configuration: The LDAP server details (hostname, port, etc.) may be incorrectly configured in the SAP system.

    2. Network Issues: There may be network connectivity issues preventing the SAP system from reaching the LDAP server.

    3. LDAP Server Down: The LDAP server itself may be down or not running.

    4. Firewall Restrictions: Firewalls or security groups may be blocking the connection to the LDAP server.

    5. DNS Resolution Issues: If the LDAP server is specified by hostname, there may be issues with DNS resolution.

    6. Authentication Issues: The credentials used to connect to the LDAP server may be incorrect or insufficient.

    Solutions to TRUST050 Error

    1. Check LDAP Configuration:

      • Go to transaction SU01 and check the user settings for LDAP.
      • Verify the LDAP server settings in transaction SICF or LDAP configuration settings in the SAP system.
    2. Test Network Connectivity:

      • Use tools like ping or telnet to check if the LDAP server is reachable from the SAP server.
      • Example: ping <LDAP_Server_Hostname> or telnet <LDAP_Server_Hostname> <Port>
    3. Verify LDAP Server Status:

      • Ensure that the LDAP server is up and running. You may need to contact your system administrator or the team responsible for the LDAP server.
    4. Check Firewall Settings:

      • Ensure that there are no firewall rules blocking the connection to the LDAP server. You may need to work with your network/security team to verify this.
    5. DNS Configuration:

      • If using a hostname, ensure that the hostname resolves correctly to the IP address of the LDAP server. You can check this using nslookup <LDAP_Server_Hostname>.
    6. Review Authentication Credentials:

      • Ensure that the credentials used for connecting to the LDAP server are correct and have the necessary permissions.
    7. Check SAP Notes:

      • Look for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.

    Related Information

    • SAP Documentation: Refer to the official SAP documentation for LDAP integration and configuration.
    • SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have faced similar issues.
    • System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.

    By following these steps, you should be able to diagnose and resolve the TRUST050 error in your SAP system.

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