Before you start
An installed shop, access to DeliveryKing administration and permission to change this setting. Check changes in the shop afterwards.
The recorded interface is German. German button labels remain identifiable in all translations. Some labels may differ in your installed version.
Step by step
Open “Extras”. Find an extra or create one with the available action.
Check its name, assignment and surcharge for the intended sizes. A free extra needs an intentional zero surcharge.
Save and select the extra on a relevant dish in the shop. Compare the price before and after selecting it.
Check the result
Test several sizes if their surcharges differ.