To register and connect a Third-Party Authenticator app:
- On a mobile device, download and install
        an authenticator app.
- Then,
        enter a username and password on your Salesforce product’s login screen.
- For products built on the Salesforce
        Platform: Click Choose Another
        Verification Method in the bottom left
        corner of the Connect Salesforce
        Authenticator screen, then select One-Time
        Password Generator. For all other
        products: Select One-Time Password
        Generator.
- Open the authenticator app and select to
        add a new account.
- Use the authenticator app to scan the QR
        barcode displayed on the app
        connection screen. If scanning the QR
        barcode isn’t an option, manually generate
        your security key. Then enter it in the
        authenticator app.
- Enter the
        code generated by the authenticator app on the app connection screen, then click the button to connect and log
        in.
To log in using a Third-Party
            Authenticator app:
- As
        usual, on your Salesforce product’s login screen,
        enter a username and password.
- Open the authenticator app.
- Enter
        the code generated by the authenticator
        app in the designated field on the identity verification screen, then click
        the button to verify and finish logging in
        to Salesforce.
