Payment Forms: Ability to set up discounts based on purchased quantity?

I have created t-shirt order form for my customer. Different sizes are different amounts (starts at $15 but XLarge and up increase in price).

My customer would like to offer a discount: if ordering 4 or more t-shirts, the price is $10 a piece.  Is this possible?

Thanks for your help!

Jen

Unfortunately, coupon codes will not work based on product quantities,  but you could set up special pricing, you will be able to handle the price based on the quantity selected. 

This guide will provide you more  details about it: https://www.jotform.com/help/265-What-is-Special-Pricing 

If you have any question, let us know. 

I can base it on quantity even if I have special pricing on larger sizes already? Small-Large= $15, XL=$16, 2xL=$18, etc?

Thank you!

Unfortunately, it's possible to set up special pricing only once, you cannot add it again to the quantity options. 

If you would like to apply certain discount based on the purchased quantities then you will need to switch your current payment type. It is currently set up to "Sell products", you will need to use the "User defined amount" payment type.

You will also need to set up your prices using basic fields and then perform the calculations, this guide will help you with that: https://www.jotform.com/help/259-How-to-Perform-Form-Calculation-Using-a-Widget 

This guide will also help you to pass the calculation to the payment field: https://www.jotform.com/help/275-How-to-Pass-a-Calculation-to-a-Payment-Field 

I'm also forwarding this as feature request to our second level, although we cannot provide an ETA, we will let you know as soon as we get any update about it. 

I will look at the guides you've sent. Thank you for your help!