The primary use of LDAP search is to provide space in a central place of the authentication database for storing username, passwords, and data.
It can be used in different applications and services of the end-user system.
Also, it can be used to add different operations in an active directory server database to authenticate and manage system activities like:-
1) Bind session
2) Delete unnecessary LDAP entries
3) Entries used in different commands
4) Modify data in directories.