Replacing or removing a Google ID that has been associated with your Gradelink account is easy.
Replacing a Google ID
If you'd like to replace a previous Google ID with a different one, all you need to do is click the "Sign in with Google" button on the Gradelink login page and then select or sign in to a different Google account.
Removing a Google ID
If you'd like to remove a Google ID from your Gradelink account without replacing it, you'll use a different process. First, login to Gradelink as usual. Then, click the "My Account" button near the top of the page and select "My Settings".
On the "My Settings" page, you'll see section called "Google" that will list the Google ID currently associated with your account. To remove the Google ID, just click the "Remove Google ID" button.