Below are the steps to remove a user's PIN administratively so that you can sign into their email account without a required PIN being sent to their device.
- Log in to Google Admin with an administrator's account.
- Click on Users.
- Click on the user.
- Click on the Security section, and then click on the 2-step verification section.
- Click on Off and then click the Save button.
- You should now be able to sign in to the user's email account without the two-step verification PIN and make your changes.