# FAQs

## What's the difference between a voucher and a ticket?

Under each product in the [mapping](https://docs.ventrata.com/octo-core/products) section, we provide a `deliveryMethods` key. This is an array containing one or both of the following values:

* `VOUCHER`: A single barcode/ticket for the whole booking, regardless of how many tickets were bought.
* `TICKET`: An individual barcode/ticket per person (unit).

Once a booking is confirmed:

* `booking.voucher` is provided if `deliveryMethods` contains `VOUCHER`.
* `booking.units[].ticket` is provided if `deliveryMethods` contains `TICKET`.
* If a method is not available, its value is `null`.

If both are provided, you can use either format based on your user experience and guest preference.

All Ventrata-operated products support both delivery methods, but some attractions require a separate barcode per person. In these situations, you will have only `TICKET` and not `VOUCHER`. Make sure to check `deliveryMethods` for each product.

## Do vouchers/tickets always come with both PDF and QR code? If so, which should I use?

Yes. Ventrata always offers both PDF and QR code delivery formats for vouchers and tickets. If possible, support both: show the QR code in your interface and provide the PDF as a download option. The PDF includes full redemption details.

## What is the difference between `booking.supplierReference` and barcode?

For each booking (and unit/ticket), we provide a QR code value and a supplier reference. In some cases, the barcode is very long and contains enough data to allow it to be verified offline. You should **NOT** print the QR code value in plain text. Instead, print the supplier reference below the QR code, which is always compact and human-readable.