Apply discount, maintain minimum order and add tip later

My S-I-L uses your program for his soup business orders (savethedaycatering.com) and has tried to resolve a couple of issues but has been unsuccessful. He has a minimum dollar amount for his orders of $15. Soups are usually $14.00 and thus if people electronically tip the driver $1.00 the order will go through. If he allows a discount code of say 10% it not only will discount the soup but also the tip. There should be a way for the discount to be applied to the soup order while still maintaining the $15 minimum order an then having the driver tip added on after the fact. Is this possible?

Hello Andrew,

Thank you for contacting support.

To assist you correctly, can you please share to us the URL of the form that you're trying apply this requirement to?

Guide: Where-to-find-my-form-url

Looking forward to your reply.