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Authenticator apps are considered more secure than texting. They also offer flexibility when you’re traveling to a place without cellular service. Popular options include Authy, Google Authenticator, and Microsoft Authenticator. These apps mostly follow the same procedure when you’re adding a new account: you scan a QR code associated with your account, and it is saved in the app. The next time you log in to your service or app, it will ask for a numerical code; just open up the authenticator app to find the randomly generated code required to get past security.
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When creating new account, you can "Enable 2-Factor Authentication for this user"
Or you can editing current account, and then you can "Enable 2-Factor Authentication for this user" also.
In cases, your member users have trouble with 2FA you can resend the QR code for specific accounts by click on resend QR button
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At the first time you login to TIXNGO Backoffice, you can use authenticator apps to scan the QR code, and then