Additional notes can be, e.g., a sticker, giveaway or return form. It can also be a product, e.g., "buy three and get one free".
You can send requests or instructions about additional notes to customer service: firstname.lastname@example.org
Additional notes can also be created on the online store with its own SKU. This way you can see the stock amount.
Additional notes can be added to an order in certain conditions, or to every order.
The price is 0,10€/printed document, adding sticker 0,10€/sticker when they are delivered to the warehouse. The cost of each attachment varies with size, and is viewed case by case.