How To Fix LDAPRC096 - Loop detected by client

SAP Error Message - Details

• Message type: E = Error

• Message class: LDAPRC - LDAP Interface Messages in C

• Message number: 096

• Message text: Loop detected by client

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LDAPRC096 - Loop detected by client ?

  The SAP error message "LDAPRC096 Loop detected by client" typically indicates that there is a configuration issue related to the LDAP (Lightweight Directory Access Protocol) settings in your SAP system. This error occurs when the LDAP client detects a loop in the directory structure or in the way the LDAP server is configured.
  Cause:
  
  Misconfiguration of LDAP Settings: The LDAP client may be configured to connect to an LDAP server that points back to itself or to another server that eventually leads back to the original server, creating a loop.
  Incorrect Base DN: The Base Distinguished Name (DN) specified in the LDAP configuration may be set incorrectly, causing the client to traverse the directory in a way that creates a loop.
  Multiple LDAP Servers: If multiple LDAP servers are configured and they reference each other incorrectly, this can lead to a loop.
  Network Issues: Sometimes, network misconfigurations can cause the client to perceive a loop when it is actually a network routing issue.
  
  Solution:
  
  Check LDAP Configuration: Review the LDAP configuration in the SAP system. Ensure that the LDAP server settings, including the Base DN, are correctly configured and do not point back to themselves or create circular references.
  Test LDAP Connection: Use tools like ldapsearch to test the connection to the LDAP server and verify that it returns the expected results without any loops.
  Review Directory Structure: Examine the directory structure in the LDAP server to ensure that there are no circular references or misconfigured entries that could lead to a loop.
  Update SAP Parameters: If necessary, update the SAP parameters related to LDAP integration. This may include parameters in transaction LDAP or SU01 for user management.
  Consult Documentation: Refer to SAP documentation or the LDAP server documentation for specific configuration guidelines and best practices.
  Contact Support: If the issue persists after checking the configuration, consider reaching out to SAP support or your LDAP server support for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  LDAP Documentation: Review the documentation for the specific LDAP server you are using (e.g., Microsoft Active Directory, OpenLDAP) for configuration best practices.
  Logs: Check the SAP system logs (transaction SM21) and LDAP server logs for any additional error messages or warnings that could provide more context about the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the "LDAPRC096 Loop detected by client" error in your SAP system.