How To Fix SO838 - LDAP service does not recognize authorization method used

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 838

• Message text: LDAP service does not recognize authorization method used

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 SO838 - LDAP service does not recognize authorization method used ?

  The SAP error message SO838 indicates that the LDAP (Lightweight Directory Access Protocol) service does not recognize the authorization method being used. This typically occurs when there is a mismatch between the authentication methods configured in SAP and those supported by the LDAP server.
  Causes:
  
  Mismatch in Authentication Methods: The SAP system may be configured to use an authentication method (like Simple, SASL, etc.) that the LDAP server does not support.
  Configuration Issues: Incorrect configuration settings in the SAP system or the LDAP server can lead to this error.
  LDAP Server Settings: The LDAP server may not be set up to allow the authentication method being requested by SAP.
  Network Issues: Connectivity problems between the SAP system and the LDAP server can also lead to authentication failures.
  
  Solutions:
  
  
  Check LDAP Configuration in SAP:
  
  Go to transaction SO20 in SAP to check the LDAP settings.
  Ensure that the authentication method specified in the SAP system matches what is supported by the LDAP server.
  
  
  
  Review LDAP Server Configuration:
  
  Verify the LDAP server settings to ensure that it supports the authentication method being used by SAP.
  If necessary, modify the LDAP server configuration to enable the required authentication method.
  
  
  
  Adjust Authentication Method:
  
  If the LDAP server does not support the current authentication method, consider changing the authentication method in the SAP system to one that is supported by the LDAP server.
  
  
  
  Test Connectivity:
  
  Use tools like ldapsearch to test connectivity and authentication against the LDAP server to ensure that it is reachable and functioning correctly.
  
  
  
  Check for Updates:
  
  Ensure that both the SAP system and the LDAP server are up to date with the latest patches and updates, as this can sometimes resolve compatibility issues.
  
  
  
  Consult Documentation:
  
  Refer to the SAP and LDAP server documentation for specific configuration guidelines and supported authentication methods.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to LDAP integration for any known issues or additional troubleshooting steps.
  Logs: Review the SAP system logs (transaction SM21) and LDAP server logs for more detailed error messages that can provide further insights into the issue.
  Support: If the issue persists, consider reaching out to SAP support or your LDAP server vendor for assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the SO838 error message in your SAP system.