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Microsoft Teams App Doesn't Load

AB Projects tab blank or stuck in Teams? Most load failures are the Teams client or sign-in, not the app: check for the AADSTS50020 personal-account error, allow the consent popup, restart and update Teams, clear its cache, and make sure blz.actionbridge.io isn't blocked.

SSO and Microsoft Login

AB Projects has no password of its own — you sign in with your Microsoft 365 work or school account through Microsoft Entra ID SSO, in Teams or at blz.actionbridge.io. Any organization can sign in; personal Microsoft accounts cannot (error AADSTS50020). Includes what to check when sign-in fails.