What you're seeing. You asked for a sign-in code and nothing arrived.

Why it happens. Three common reasons. The code expires 15 minutes after it's sent, so an old email won't work. Requests are rate-limited, so asking repeatedly makes it slower, not faster. And if your account has been disabled you will not receive one at all.

How to fix it. Check spam, then request one fresh code and use it straight away. If you share an inbox, make sure nobody else has opened it. If nothing arrives after one clean attempt, your account may be disabled — ask your company admin.

Who can fix it. You, unless the account is disabled — then ARC support, via your company admin.