How To Fix SLDAP_ICM018 - Directory service "&1" sends referral response with empty list

SAP Error Message - Details

• Message type: E = Error

• Message class: SLDAP_ICM - ICM LDAP Plugin: Messages

• Message number: 018

• Message text: Directory service "&1" sends referral response with empty list

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 SLDAP_ICM018 - Directory service "&1" sends referral response with empty list ?

  The SAP error message SLDAP_ICM018 indicates that the directory service (such as LDAP) is sending a referral response with an empty list. This typically occurs when the LDAP server is configured to refer the request to another server, but there are no entries available in the referred server.
  Causes:
  
  Empty Referral: The LDAP server is configured to refer requests to another server, but that server does not have any entries for the requested search.
  Misconfiguration: The LDAP server may be misconfigured, leading to incorrect referrals or empty responses.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the referred LDAP server.
  Access Rights: The user account used by SAP to connect to the LDAP server may not have the necessary permissions to view the entries in the referred directory.
  Search Base: The search base specified in the SAP configuration may not be correct, leading to no results being found.
  
  Solutions:
  
  Check LDAP Configuration: Verify the configuration of the LDAP server to ensure that it is set up correctly and that it has entries available for the requested search.
  Review Referral Settings: If referrals are not needed, consider disabling them in the LDAP server configuration.
  Test Connectivity: Use tools like ldapsearch to test connectivity to the LDAP server and check if it returns the expected results.
  Check User Permissions: Ensure that the user account used by SAP has the necessary permissions to access the entries in the LDAP directory.
  Validate Search Base: Double-check the search base specified in the SAP system to ensure it points to the correct location in the LDAP directory.
  Review Logs: Check the SAP and LDAP server logs for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to LDAP integration and the specific error message for any patches or updates that may address the issue.
  LDAP Documentation: Refer to the documentation for your specific LDAP server (e.g., OpenLDAP, Microsoft Active Directory) for details on configuring referrals and troubleshooting LDAP queries.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the SLDAP_ICM018 error message.