How To Fix SO759 - ID for LDAP connection is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 759

• Message text: ID for LDAP connection is invalid

What causes this issue?

The RFC-LDAP interface does not have a valid link identification.
An incorrect LDAP computer address or port may have been stated when
logging on and the error message subsequently issued missed.

System Response

How to fix this error?

Log off and check the LDAP computer address and port when logging back
on.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SO759 - ID for LDAP connection is invalid ?

  The SAP error message SO759 indicates that the LDAP (Lightweight Directory Access Protocol) connection is invalid. This error typically arises when there are issues with the configuration of the LDAP connection in the SAP system. Below are the potential causes, solutions, and related information for this error:
  Causes:
  
  Incorrect LDAP Server Configuration: The LDAP server details (hostname, port, etc.) may be incorrectly configured in the SAP system.
  Authentication Issues: The credentials used to connect to the LDAP server may be incorrect or have insufficient permissions.
  Network Issues: There may be network connectivity problems preventing the SAP system from reaching the LDAP server.
  SSL/TLS Configuration: If the LDAP server requires a secure connection (LDAPS), the SSL/TLS settings may not be correctly configured.
  Expired or Invalid Certificates: If using SSL/TLS, the certificates may have expired or may not be trusted by the SAP system.
  LDAP Server Unavailability: The LDAP server may be down or not reachable due to maintenance or other issues.
  
  Solutions:
  
  
  Verify LDAP Configuration:
  
  Check the LDAP server settings in the SAP system (transaction code SO10 or SICF for service configuration).
  Ensure that the hostname, port, and base DN are correctly specified.
  
  
  
  Check Credentials:
  
  Verify the username and password used for the LDAP connection.
  Ensure that the user has the necessary permissions to access the LDAP directory.
  
  
  
  Test Network Connectivity:
  
  Use tools like ping or telnet to check if the SAP system can reach the LDAP server on the specified port.
  Check firewall settings that may be blocking the connection.
  
  
  
  Review SSL/TLS Settings:
  
  If using LDAPS, ensure that the SSL/TLS settings are correctly configured in the SAP system.
  Check the SSL configuration in transaction STRUST to ensure that the correct certificates are imported and trusted.
  
  
  
  Check Certificate Validity:
  
  If using SSL/TLS, verify that the certificates are valid and not expired.
  Ensure that the root and intermediate certificates are also trusted by the SAP system.
  
  
  
  Consult Logs:
  
  Check the SAP system logs (transaction SM21) and the LDAP server logs for any additional error messages that may provide more context.
  
  
  
  Test LDAP Connection:
  
  Use the LDAP test tool available in the SAP system (transaction LDAP) to test the connection and validate the configuration.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to LDAP connections.
  Documentation: Refer to the official SAP documentation for configuring LDAP connections for detailed steps and best practices.
  Support: If the issue persists, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the SO759 error related to the invalid LDAP connection in your SAP system.