How do I turn on two-factor?

Quick answerIn 3 steps

Open Settings → Users → “Two-factor for my login” (or My account → “Set up two-factor”) and press “Start setup”.
Scan the QR with an authenticator app (Google Authenticator, Authy…), type the 6-digit code and press “Turn on”.
From then on, an owner or store manager is asked for the code at every sign-in — at the back office and at the counter.

WhereSettings → Users in the back office

Learn it properlyTurn on two-factor for your loginA code from an app on your phone, after the password — owners and store managers are asked to use it.Open the lesson →

Also asked as

“authenticator app for my login”
“2FA”