If the transaction history on two payment terminals or handhelds does not match, the issue may be related to the device’s internet connection or synchronization.
Follow these steps on each affected terminal:
Open the Settings menu in the sundayPay app.
Select Network Test to confirm that the terminal is connected to the internet.
Select Synchronize to refresh the terminal’s transaction data.
Return to the home screen and select History.
Compare the transaction histories again.
If one terminal was temporarily offline, some transactions may not appear in its history until the device reconnects and synchronizes.
If the histories still do not match after completing these steps, contact sunday Support and provide:
The restaurant name
The affected terminal or handhelds
The date and approximate time of the missing transaction
The transaction amount, if available
Last Updated: 09/03/2026