How To Fix LDAPSYNC004 - Cannot create connection to server &1

SAP Error Message - Details

• Message type: E = Error

• Message class: LDAPSYNC - Messages for Synchronization with a Directory

• Message number: 004

• Message text: Cannot create connection to server &1

What causes this issue?

INCLUDE LDAPSYNC_FOLLOWUP

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?

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 LDAPSYNC004 - Cannot create connection to server &1 ?

  The SAP error message LDAPSYNC004 Cannot create connection to server &1 typically indicates that there is an issue with the connection to the LDAP (Lightweight Directory Access Protocol) server. This error can arise due to various reasons, including network issues, incorrect configuration settings, or server unavailability.
  Causes:
  
  Network Issues: The SAP system may not be able to reach the LDAP server due to network problems, such as firewall restrictions or DNS resolution issues.
  Incorrect Configuration: The LDAP server settings in the SAP system may be incorrectly configured, including the server address, port number, or authentication details.
  Server Unavailability: The LDAP server may be down or not responding due to maintenance or other issues.
  Authentication Issues: The credentials used to connect to the LDAP server may be incorrect or insufficient for establishing a connection.
  SSL/TLS Issues: If the connection requires SSL/TLS, there may be issues with certificates or encryption settings.
  
  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 that there are no firewall rules blocking the connection.
  
  
  
  Verify Configuration Settings:
  
  Check the LDAP configuration in the SAP system (transaction code LDAP or SU01 for user settings).
  Ensure that the server address, port, and other parameters are correctly set.
  
  
  
  Check LDAP Server Status:
  
  Confirm that the LDAP server is up and running. You may need to contact your system administrator or check the server logs for any issues.
  
  
  
  Review Authentication Credentials:
  
  Ensure that the username and password used for the LDAP connection are correct and have the necessary permissions.
  
  
  
  SSL/TLS Configuration:
  
  If using SSL/TLS, ensure that the certificates are correctly installed and configured in the SAP system.
  Check if the LDAP server requires a secure connection and adjust the settings accordingly.
  
  
  
  Logs and Traces:
  
  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 can be established successfully.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to LDAP integration for any known issues or patches that may address the problem.
  Documentation: Refer to the official SAP documentation for LDAP integration for detailed configuration steps and troubleshooting tips.
  Support: If the issue persists, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have taken to troubleshoot.
  
  By following these steps, you should be able to identify and resolve the issue causing the LDAPSYNC004 error in your SAP system.