This page describes the procedure to change the login name of Kintone.
You cannot use a login name that is already used for another user.

1. Check "rules for login name".

2. Click in the header.

3. Click Users & System Administration.
   Accessing Kintone Users & System Administration

4. Click Departments & Users.
   

5. Enter a display name or a login name of the user in the search box to search the target user.
   You can also expand the department tree and select the target user.

6. Click for the user.
   

7. Edit "Login Name".
   

8. Click Save.