If you're having trouble signing in to Flint, this article covers the most common error messages and how to resolve them quickly.
"This email address has already been used"
This message means your school email address is already linked to an existing Flint account. You don't need to create a new account - you just need to sign in using the method that's already connected to your email (SSO).
Try signing in using one of these methods at app.flintk12.com:
Sign in with Google - if your school uses Google accounts.
Sign in with Microsoft - if your school uses Microsoft accounts.
Email and password - if you previously set a Flint password.
Tip: If you're unsure which method your account uses, try Google or Microsoft first using your school email. If neither works and you need to reset your password, see How to change your Flint password.
"When I sign-in, it takes me to "my name's school" and not my schools space."
To get to the right workspace:
Go to app.flintk12.com and sign in with your school email address (not a personal email).
Once signed in, click your workspace name in the top-left corner of the screen.
Select your school's workspace from the list.
If your school's workspace doesn't appear in the list, contact your school's Flint administrator to confirm that your account has been added to the correct workspace.
You're stuck in a sign-in loop (redirected back to the login page repeatedly)
A sign-in loop usually means your browser has cached a broken session. To fix it:
Clear your browser cache and cookies, then close and reopen the browser.
Try signing in using Chrome (our recommended browser for Flint).
If you're on iPad, make sure Safari or Chrome is updated to the latest version.
If the loop continues, try signing in from a private/incognito browser window - this rules out extension or cache issues.
You received a verification email but the link isn't working
Verification links expire after a short period. If the link no longer works:
Go back to app.flintk12.com and attempt to sign in again - this will trigger a new verification email.
Check your spam or junk folder if the email doesn't appear within a few minutes.
Make sure you're checking the inbox for the exact email address you used to sign up.
Still can't get in?
If none of the above resolves your sign-in issue, contact our support team. Click Learn more about Flint in the lower-left corner of Flint, then click Help. Let us know:
The email address you're trying to sign in with.
The exact error message you see.
The browser and device you're using.