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How to reset your PIN code

4 min readUpdated October 28, 2026

Forgot your PIN code? Reset it from the app, or change it from the back-office.

The PIN code protects access to your register. If you have forgotten it, you can ask for a new one from the app: Tunder sends an email to the account administrator.

You can also change a profile's code from the back-office (on a computer). Pick the app or the back-office below.

Reset the PIN code from the app

You need an internet connection. The email goes to the account administrator's address, not to the phone's.

  1. Open the PIN code screen

    This is the screen where the app asks you to enter your PIN code.

    • If you get it wrong too many times, Tunder shows “Too many attempts. access blocked for 5 minutes. Please reset the PIN code or contact the account administrator.”
  2. Tap “Forgot PIN code?”

    The button is below the keypad. A “Reset PIN code” window opens.

    • What the window says: “To reset the PIN, a confirmation email will be sent to the account owner.”
    • The administrator's address is shown partly masked: this is the one you will have to open in the next step.
  3. Tap “Send email”

    The “Email sent” message confirms it.

    • If the email did not go out: Tunder shows “Email not sent” and asks you to check your internet connection. Reconnect, then try again.
  4. Open the “Reset PIN code” email

    Check the account administrator's inbox. The email shows the device and the date of the request. Tap the “Generate a new PIN code” button.

    • The link is active for 12 hours. After that, the page says it has expired: request a new email from the app.
    • Can't find the email? Check your spam folder. If the account was created with “Sign in with Apple”, the address may be a private Apple address: see the article on the Apple (Private Relay) email.
  5. Read your new PIN code

    A page shows “Here is your new PIN code”. Write it down, then tap “Open the app”.

    • On your devices: the new code is updated on all internet-connected devices.
    • If the page shows “Your new PIN code will be displayed soon” and does not change: send the email again from the app. If the problem continues, forward the email you received to support (support@tunder.co): the code can be sent to you by hand.

Frequently asked questions

Where is the reset email sent?
To the account administrator's address. The app shows a partly masked version of it in the “Reset PIN code” window. It is not necessarily the address of the cashier who forgot the code.
I signed in with Apple: where did my email go?
With “Sign in with Apple”, your account may be linked to a private address like xxxx@privaterelay.appleid.com. The email arrives there, then Apple forwards it to your real inbox. In the app: Settings, General tab, “My account”: the account's address is shown, and a tap copies it.
The reset page keeps loading without showing a code. What can I do?
Send the email again from the app (“Forgot PIN code?”, then “Send email”). If that changes nothing, forward the email you received to support@tunder.co: support can send you the code.
The link in the email no longer works. Why?
The reset link stays active for 12 hours. After that it expires: request a new email from the app.
I am locked out during service and I get no email.
After too many attempts, access is blocked for 5 minutes. If you receive no email, contact support or the account administrator: the administrator PIN can be sent again to the address linked to the account.
Can I change a PIN code without going through the email?
Yes, from the back-office (admin.tunder.co, on a computer): Settings, “User management”, Users tab, open the profile and enter a new 4-digit code. This feature is Premium, except for the profile created with the shop.

See also

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