Extra Fees & Free Shipping
Below content is the crux of feature setup from merchant POV

You can choose to apply the extra fees under the following conditions:
Free Shipping Calculation
When you enable the âPer Item Quantityâ option, the âfree shipping calculationâ option will be displayed. If you enable this option, the free shipping discount will apply to all quantities.
View full details explanation on our helpdesk here
Below content is the crux of feature from customer POV


Based on Order type and the slab range you have setup to apply Free shipping and extra fees will be applied on Cart or checkout page to your customers.
For this demo store we have setup quantity as 10 and order type as Normal so you will be able to see the Extra fees on cart page itself when the quantity reached between 10-20.