To login, a code must be generated from your chosen 2FA app. Simply open your app on your smartphone or tablet and the code will be presented to you. This code is time-sensitive and refreshes periodically.
While email or text-based codes are commonly used for 2FA, they're susceptible to interception or hacking, which is why we do not support text or email based 2FA.
To ensure a higher level of security, you are required to use an authentication app for generating 2FA codes. These apps, such as Google Authenticator or Authy, create time-sensitive codes that are more secure than those sent via email or text.
If you have not yet set up 2FA or need more information on how to set this up, please see this article: LabelWorx User Account - Two-Factor Authentication (2FA)