How To Fix SLDAP_ICM016 - Referral "&1&2" (from "&3") has unknown scope "&4"

SAP Error Message - Details

• Message type: E = Error

• Message class: SLDAP_ICM - ICM LDAP Plugin: Messages

• Message number: 016

• Message text: Referral "&1&2" (from "&3") has unknown scope "&4"

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_ICM016 - Referral "&1&2" (from "&3") has unknown scope "&4" ?

  The SAP error message SLDAP_ICM016 indicates that there is an issue with the LDAP (Lightweight Directory Access Protocol) configuration in your SAP system. This specific error message suggests that the LDAP server is returning a referral that the SAP system does not understand due to an unknown scope.
  Cause:
  
  LDAP Configuration Issues: The LDAP server may be configured to return referrals that are not properly defined or recognized by the SAP system.
  Scope Misconfiguration: The scope of the LDAP search may not be correctly set, leading to the SAP system not being able to interpret the referral.
  Network Issues: There may be network connectivity issues between the SAP system and the LDAP server, causing incomplete or incorrect data to be received.
  LDAP Server Settings: The LDAP server may be set up to return referrals for certain queries, but the SAP system is not configured to handle those referrals.
  
  Solution:
  
  Check LDAP Configuration: Review the LDAP configuration in the SAP system. Ensure that the LDAP server settings (such as host, port, and base DN) are correctly configured.
  Verify Scope Settings: Make sure that the scope of the LDAP search is correctly defined. The common scopes are base, one-level, and subtree. Ensure that the SAP system is set to handle the expected scope.
  Update SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that may resolve known issues.
  Test LDAP Connection: Use tools like ldapsearch to test the connection to the LDAP server and verify that the expected data can be retrieved without errors.
  Consult LDAP Documentation: Review the documentation for your specific LDAP server to ensure that it is configured correctly and that the referrals it generates are valid.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  SAP Basis Documentation: Refer to the SAP Basis documentation for detailed information on configuring LDAP connections.
  LDAP Server Documentation: Consult the documentation for your specific LDAP server (e.g., Microsoft Active Directory, OpenLDAP) for configuration details and troubleshooting steps.
  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 SLDAP_ICM016 error in your SAP system.