How To Fix SO842 - LDAP service does not support required authorization method

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 842

• Message text: LDAP service does not support required authorization method

Self-Explanatory Message

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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 SO842 - LDAP service does not support required authorization method ?

  The SAP error message SO842 indicates that the LDAP (Lightweight Directory Access Protocol) service does not support the required authorization method that SAP is trying to use for authentication. This typically occurs when there is a mismatch between the authentication methods configured in SAP and those supported by the LDAP server.
  Cause:
  
  Unsupported Authentication Method: The LDAP server may not support the authentication method that SAP is attempting to use (e.g., SASL, simple bind, etc.).
  Configuration Issues: There may be misconfigurations in the SAP system or the LDAP server settings.
  Version Compatibility: The version of the LDAP server may not be compatible with the authentication methods expected by SAP.
  Network Issues: There could be network-related issues preventing proper communication between SAP and the LDAP server.
  
  Solution:
  
  
  Check LDAP Configuration:
  
  Verify the LDAP server settings in the SAP system (transaction code SO12 for LDAP settings).
  Ensure that the correct LDAP server is specified and that the connection parameters (host, port, etc.) are correct.
  
  
  
  Review Authentication Methods:
  
  Check the authentication methods supported by your LDAP server. This can usually be found in the LDAP server documentation.
  If the LDAP server does not support the required method, consider changing the authentication method in SAP to one that is supported by the LDAP server.
  
  
  
  Modify SAP Settings:
  
  In the SAP system, you can adjust the LDAP settings to use a different authentication method. This can be done in the SO12 transaction by selecting the appropriate method from the available options.
  
  
  
  Test Connection:
  
  Use the LDAP Test functionality in SAP to test the connection to the LDAP server and verify that the authentication method works as expected.
  
  
  
  Consult Documentation:
  
  Refer to the SAP and LDAP server documentation for specific configuration details and supported authentication methods.
  
  
  
  Update Software:
  
  Ensure that both the SAP system and the LDAP server are updated to the latest versions, as updates may include fixes for compatibility issues.
  
  
  
  Network Troubleshooting:
  
  If there are network issues, check firewalls, routing, and other network configurations to ensure that the SAP system can communicate with the LDAP server.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to LDAP integration and authentication issues. These notes often provide specific guidance and troubleshooting steps.
  LDAP Documentation: Review the documentation for your specific LDAP server (e.g., OpenLDAP, Microsoft Active Directory) for details on supported authentication methods and configuration.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the SO842 error and implement a solution to resolve it.