How To Fix SO771 - Logon to LDAP service failed

SO771 - Overview

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 771

• Message text: Logon to LDAP service failed

What causes this issue?

The user ID stated (X.500 name and password) is not accepted by the
LDAP directory service.

System Response

How to fix this error?

Check the user ID.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SO771 - Logon to LDAP service failed ?

  The SAP error message SO771, which indicates "Logon to LDAP service failed," typically arises when there are issues with the connection between the SAP system and the LDAP (Lightweight Directory Access Protocol) server. This can occur due to various reasons, including configuration errors, network issues, or authentication problems.
  Causes of SO771 Error
  
  
  Incorrect LDAP Configuration: The LDAP server settings in the SAP system may be incorrect. This includes the server address, port number, or base DN (Distinguished Name).
  
  
  Network Issues: There may be network connectivity problems preventing the SAP system from reaching the LDAP server.
  
  
  Authentication Issues: The credentials used to connect to the LDAP server may be incorrect or the user may not have the necessary permissions.
  
  
  LDAP Server Down: The LDAP server itself may be down or experiencing issues.
  
  
  Firewall Restrictions: Firewalls or security groups may be blocking the connection to the LDAP server.
  
  
  SSL/TLS Issues: If the connection to the LDAP server is secured