Open price or variable price means that an product does not have a fixed price. When selecting the product, you enter the price manually at the register. You enter the price every time the item is sold.
Go to Products > Products
Go to Products > Products
Select "New product " or "New productvariant"
Set the price a 0 in “Price inkl. MVA” .
Check the box “Ask for price”.
The remaining areas are filled in as normal.
See guide for adding new products for an explanation of the remaining areas.