---
title: Signing In Fails
summary: What a specific sign-in or single sign-on error actually means, whether it's your password, your account, or your identity provider.
date: 2026-09-10
---

# Signing In Fails

What a specific sign-in or single sign-on error actually means, whether it's your password, your account, or your identity provider.

## Password sign-in

**"Invalid email or password"**: exactly what it says; this is deliberately vague between a wrong email and a wrong password, so it can't be used to check whether an email has an account.

**"Too many attempts"**: sign-in is rate-limited after repeated failures. Wait a moment before trying again rather than retrying immediately.

**"This instance has reached its maximum number of accounts"**: your plan's account limit is reached; a platform administrator needs to upgrade before another account can be created.

## Single sign-on

**"Single sign-on is not enabled for this instance"**: your organization hasn't turned SSO on, or you followed an old link from before it was configured. Use password sign-in, or ask your administrator.

**"Your email domain is not permitted to sign in via SSO"**: SSO on this instance is restricted to specific email domains, and yours isn't one of them. This is a configuration decision by your administrator, not an error to retry.

**"No account exists for this address"**: your organization's SSO is set to require admin provisioning, meaning an administrator has to add your account first before you can sign in through SSO at all, even with a valid identity-provider login.

**"This account has been disabled"**: an administrator disabled this specific account. Contact them; there's nothing to fix on your end.

**"Your sign-in request expired"**: the SSO flow itself timed out, most often from taking too long on your identity provider's own login page. Start over.

**"Single sign-on failed"** or **"could not be completed"**: a generic failure from the identity-provider exchange itself. Try again; if it persists, an administrator should check the issuer URL, client ID, and client secret under **Settings → SSO**, since a misconfigured value here produces exactly this symptom.

## Password recovery when SSO is enabled

If your organization has SSO on, password recovery is intentionally unavailable: it's managed by your identity provider instead. Sign in through SSO, or contact your administrator.

## Related

- [Team and Enterprise Settings](/en/docs/guides/admin-settings): configuring SSO, provisioning modes, and accounts
- [License Errors and Activation Problems](/en/docs/troubleshooting/license-problems): a license-driven account limit, distinct from a sign-in error