Enter your owner key. It is remembered on this device.
Tick one now, or leave both blank for the payee to choose.
Sign below. You sign first; the payee then signs on their phone.
Next voucher will be —. To continue from a paper voucher book, set the next number (it can only move forward).
The payee's link will stop working. The number stays in the register as Void so the sequence has no gaps.