How to change WordPress username and also fix Super Admin problem?

Last updated: 20210407

 

Reference:

https://wordpress.org/support/topic/change-the-admin-user-name/

 

Step 1:

Use the Username Changer plugin.

 

Step 2:

If you notice the Admin user now loses Super Admin privileges on your WordPress Network (cannot add plugin or add themes)..

Then open your current theme’s functions.php.

Add this to line 1 so it executes when you visit your site.

grant_super_admin(1);

 

Visit your site once, then remove the above line from the code.

 

Your user should now have Super Admin privileges.