How To Fix LDAP031 - The selected LDAP Connector is not responding

SAP Error Message - Details

• Message type: E = Error

• Message class: LDAP - LDAP Interface Messages in ABAP

• Message number: 031

• Message text: The selected LDAP Connector is not responding

What causes this issue?

The LDAP Connector is not active.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

In Customizing, choose the status <LS>Connector active</>; the CCMS
starts the LDAP Connector and monitors it.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LDAP031 - The selected LDAP Connector is not responding ?

  The SAP error message LDAP031 indicates that the selected LDAP (Lightweight Directory Access Protocol) Connector is not responding. This can occur in various scenarios, particularly when SAP systems are integrated with LDAP for user authentication or directory services. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the LDAP server.
  LDAP Server Down: The LDAP server may be down or not reachable due to maintenance or unexpected outages.
  Configuration Errors: Incorrect configuration settings in the SAP system for the LDAP connector, such as wrong server address, port number, or authentication credentials.
  Firewall Restrictions: Firewalls or security groups may be blocking the necessary ports for LDAP communication.
  LDAP Service Not Running: The LDAP service on the server may not be running or may have crashed.
  Timeout Settings: The timeout settings for the LDAP connection may be too short, causing the connection to fail before it can be established.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the LDAP server. You can use tools like ping or telnet to test connectivity to the LDAP server's IP address and port.
  Verify LDAP Server Status: Check if the LDAP server is up and running. If it is down, you may need to restart the service or contact your system administrator.
  Review Configuration Settings: Double-check the LDAP connector configuration in the SAP system. Ensure that the server address, port, and authentication details are correct.
  
  You can find these settings in transaction LDAP or SU01 (for user management).
  
  
  Check Firewall Settings: Ensure that any firewalls between the SAP system and the LDAP server allow traffic on the required ports (typically port 389 for LDAP and 636 for LDAPS).
  Monitor LDAP Service: If you have access to the LDAP server, check the logs to see if there are any errors or issues with the LDAP service.
  Increase Timeout Settings: If the connection is timing out, consider increasing the timeout settings in the SAP system for the LDAP connection.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to LDAP integration for any known issues or patches that may address this error.
  Documentation: Refer to the official SAP documentation for LDAP configuration and troubleshooting.
  Logs: Review the SAP system logs (transaction SM21) and the LDAP server logs for any additional error messages that could provide more context.
  Support: If the issue persists, consider reaching out to SAP support or your organization's IT support team for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the LDAP031 error in your SAP system.