How To Fix SLDAP_ICM001 - The ICM LDAP plug-in has closed the connection: Code &1; Reason: "&2&3&4"

SAP Error Message - Details

• Message type: E = Error

• Message class: SLDAP_ICM - ICM LDAP Plugin: Messages

• Message number: 001

• Message text: The ICM LDAP plug-in has closed the connection: Code &1; Reason: "&2&3&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_ICM001 - The ICM LDAP plug-in has closed the connection: Code &1; Reason: "&2&3&4" ?

  The SAP error message SLDAP_ICM001 indicates that the Internet Communication Manager (ICM) LDAP plug-in has closed the connection. This error can occur for various reasons, and understanding the cause and potential solutions is essential for troubleshooting.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the LDAP server.
  LDAP Server Configuration: The LDAP server may be misconfigured or not running, leading to connection failures.
  Authentication Issues: Incorrect credentials or authentication methods may cause the connection to be rejected.
  Timeouts: The connection may have timed out due to inactivity or long response times from the LDAP server.
  Resource Limitations: The SAP system or the LDAP server may be running out of resources (e.g., memory, connections).
  SSL/TLS Issues: If the connection is secured using 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.
  Verify firewall settings to ensure that the necessary ports are open.
  
  
  
  Verify LDAP Server Status:
  
  Check if the LDAP server is running and accessible.
  Review the LDAP server logs for any errors or warnings that might indicate issues.
  
  
  
  Review Configuration Settings:
  
  Check the configuration settings in the SAP system for the LDAP connection (e.g., host, port, base DN).
  Ensure that the LDAP server settings in the SAP system match the actual settings of the LDAP server.
  
  
  
  Check Authentication Credentials:
  
  Verify that the credentials used for the LDAP connection are correct and have the necessary permissions.
  If using secure connections, ensure that the correct authentication method is configured.
  
  
  
  Increase Timeout Settings:
  
  If timeouts are suspected, consider increasing the timeout settings in the SAP system for LDAP connections.
  
  
  
  Monitor Resource Usage:
  
  Check the resource usage on both the SAP system and the LDAP server to ensure that they are not overloaded.
  
  
  
  SSL/TLS Configuration:
  
  If using SSL/TLS, ensure that the certificates are valid and properly configured.
  Check for any SSL/TLS-related errors in the logs.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to LDAP and ICM for any known issues or patches that may address this error.
  Logs: Review the ICM logs and LDAP server logs for more detailed error messages that can provide additional context.
  Documentation: Refer to the SAP documentation for configuring LDAP connections and troubleshooting ICM issues.
  
  By systematically checking these areas, you should be able to identify the cause of the SLDAP_ICM001 error and implement an appropriate solution.