Add a phone for text-message codes
We'll text a code to this number when you sign in. An authenticator app is more reliable if you can use one.
State · text-message codes unavailable (prod default)
Text-message codes aren't available right now
This account can't receive sign-in codes by text yet. Use an authenticator app instead — it's more secure and works without signal.
Disabled until text delivery is available.
State · available · enter number
1 · Your number›2 · Confirm
Standard message rates may apply. We only use it for sign-in codes.
State · available · confirm code
State · wrong / expired code (fail-closed)
1 · Your number›2 · Confirm
That code is wrong or has expired. Request a new one and enter it within a few minutes.
“Use a different number” discards the pending (not yet active) phone factor and returns to step 1 with the previous number prefilled, so a typo can be fixed without starting over.