Verification dialogs
Some payment service providers require the Cashier to verify some information during the payment process.
This can for an example by the signature of the customer or the last 4 digits of the card.
In this case the LS One POS will pop up a message to the cashier and wait for his input.
Signature verification
The LS One POS will print out the copies from the PSP to be signed and the cashier verifies the signature.
Card number verification
The Cashier checks the card and enters the last 4 digits of the card number.