How To Fix LDAPRC049 - Could not logon to directory

LDAPRC049 - Overview

• Message type: E = Error

• Message class: LDAPRC - LDAP Interface Messages in C

• Message number: 049

• Message text: Could not logon to directory

What causes this issue?

The combination of user name (DN) and password transferred to the
directory was not accepted by the directory.

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?

Check the set or entered data for the user and password for the
directory.
If you are using an application with which you do not need to enter
this data directly, you can find the data as configuration setting in
the LDAP server used ("System User" field).

Procedure for System Administrators

Check whether you can log on to the directory with the entered data
using the LDAP protocol.
Note: A frequent error when using the Microsoft Active Directory is
that the user enters their Microsoft Windows user name instead of
the full Distinguished Name, since it is also possible to log on to
the directory using this Microsoft Windows logon with Microsoft tools
(such as ldp.exe). However, these tools do not use the user/password
logon used by the SAP system.

Error message extract from SAP system. Copyright SAP SE.

LDAPRC049 - Details

• The SAP error message LDAPRC049: Could not logon to directory typically indicates an issue with the connection to the LDAP (Lightweight Directory Access Protocol) server. This error can arise due to various reasons, including configuration issues, network problems, or authentication failures. Below are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Incorrect LDAP Configuration: The LDAP server settings in the SAP system may be incorrect, including the server address, port number, or base DN (Distinguished Name).
  Authentication Issues: The credentials (username and password) used to connect to the LDAP server may be incorrect or have insufficient permissions.
  Network Issues: There may be network connectivity problems preventing the SAP system from reaching the LDAP server.
  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 Configuration: If the LDAP server requires a secure connection, issues