Input and track voucher number at any payment type

It will be great to add an option to input and track voucher number at any payment type.

Many companies use marketing campaign gist vouchers that has a unique serial number on each voucher and the customers present those vouchers to be redeemed and it is necessary for the companies to track the voucher numbers redeemed by customers.

appreciate adding this feature the soonest.

thank you for your support and continuous cooperation and have a great day.