How To Fix SLDAP_ICM011 - Invalid combination of security protocol &1 and client identity

SAP Error Message - Details

• Message type: E = Error

• Message class: SLDAP_ICM - ICM LDAP Plugin: Messages

• Message number: 011

• Message text: Invalid combination of security protocol &1 and client identity

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 SLDAP_ICM011 - Invalid combination of security protocol &1 and client identity ?

  The SAP error message SLDAP_ICM011 indicates that there is an invalid combination of security protocol and client identity when trying to connect to an LDAP server. This error typically arises in scenarios where SAP systems are configured to authenticate users against an LDAP directory service.
  Cause:
  The error can occur due to several reasons:
  
  Mismatch in Security Protocols: The security protocol specified in the SAP system configuration does not match the expected protocol by the LDAP server. For example, if the LDAP server requires SSL/TLS and the SAP system is configured to use a non-secure connection.
  Incorrect Client Identity: The client identity (such as the user credentials or the distinguished name) provided for the LDAP connection may not be valid or may not have the necessary permissions.
  Configuration Issues: There may be misconfigurations in the LDAP settings within the SAP system, such as incorrect hostnames, ports, or security settings.
  
  Solution:
  To resolve the SLDAP_ICM011 error, you can follow these steps:
  
  
  Check Security Protocol:
  
  Verify the security protocol settings in the SAP system. If the LDAP server requires SSL/TLS, ensure that the SAP system is configured to use the correct protocol.
  You can check the settings in transaction LDAP or SICF (for ICM settings) to ensure that the correct security options are selected.
  
  
  
  Validate Client Identity:
  
  Ensure that the client identity (username and password) used for the LDAP connection is correct. Test the credentials directly against the LDAP server to confirm they are valid.
  Check if the user has the necessary permissions to access the LDAP directory.
  
  
  
  Review Configuration:
  
  Double-check the LDAP configuration in the SAP system. Ensure that the hostname, port, and other connection parameters are correctly set.
  If using SSL/TLS, ensure that the necessary certificates are installed and trusted by the SAP system.
  
  
  
  Check Logs:
  
  Review the SAP system logs (transaction SM21) and the LDAP server logs for any additional error messages that may provide more context about the issue.
  
  
  
  Test Connection:
  
  Use the LDAP test connection feature in the SAP system to verify that the connection to the LDAP server can be established successfully.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for LDAP integration for specific configuration details and troubleshooting steps.
  
  
  
  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., Active Directory, OpenLDAP) for any specific requirements regarding security protocols and client authentication.
  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 and resolve the cause of the SLDAP_ICM011 error in your SAP system.