Got a question about 2FA in Fergus? You're in the right place. If you're locked out or experiencing an error, head to our troubleshooting guide instead.
🔒 Is 2FA mandatory for my whole team?
It depends on your account type.
If your account is connected to certain accounting packages (such as Xero), 2FA is mandatory. It cannot be disabled without removing the accounting integration, and every user on the account must set it up via an authenticator app or SMS.
For all other accounts, 2FA is optional but strongly recommended. Once a Master Admin enables it in Security Settings, all users will be prompted to set it up the next time they log in.
👤 Who can enable or disable 2FA for the whole account?
Only the Master Admin can enable or disable 2FA for the account as a whole. They do this via Settings > Security > Enable Mandatory 2FA.
Individual users then set up their own 2FA method (authenticator app or SMS) the next time they log in.
ℹ️ For accounts connected to accounting packages that require 2FA, the Master Admin cannot turn it off without first removing the accounting integration.
🔁 Do I need to enter a 2FA code every time I log in?
Yes — Fergus requires a 2FA code on every login, regardless of whether you're using the same device or browser. There is no "remember this device" option. This is by design to keep your account as secure as possible.
💡 If you find entering a code every time inconvenient, using an authenticator app like Authy is faster than SMS — the code is always ready in the app without waiting for a text message.
📲 Which authenticator apps can I use?
Fergus recommends Authy by Twilio, but supports most authenticator apps. All are free from your device's app store. The most popular options are:
Authy (recommended)
Google Authenticator
Microsoft Authenticator
2FA Authenticator
📱 Will authenticator app codes work for mobile app logins?
Yes — if you set up 2FA using an authenticator app on desktop, those codes will also work when logging into the Fergus mobile app.
However, if you're setting up 2FA for the first time on the mobile app, the only available method is SMS. To use an authenticator app, complete the setup on the desktop version of Fergus first.
💻 Can I use 2FA across multiple devices?
Yes. If you're using an authenticator app like Authy, it supports multi-device — meaning you can access your codes on more than one device using the same account. Other apps like Google Authenticator are single-device by default.
If you're using SMS, your code is always sent to your registered phone number regardless of which device you're logging in from.
🔄 Can I switch between SMS and an authenticator app?
Yes — contact support@fergus.com and the team will help you change or reset your 2FA method.
🧾 If I remove my accounting integration, does 2FA turn off automatically?
No — removing the accounting integration means 2FA is no longer mandatory, but it won't automatically turn off. The Master Admin would need to disable it manually in Settings > Security if they no longer want it enabled.
💡 Tips to Avoid 2FA Issues
Keep your device date and time set to automatic — an incorrect clock is the most common cause of code rejections
Update your phone number in your authenticator app whenever it changes
Use Authy if you need access to your codes across multiple devices
Keep the Fergus app updated to avoid login issues on mobile
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