Yes! First, any modifiers or add-ons that are in your Square menu will appear to your customers on their NOMAD app. That's why it's important that your Square menu looks its best! Whatever you put in is whatever they see! Read more about how NOMAD works with Square and how to make your food truck look its best for customers.
Additionally, customers can leave a note on the checkout screen of NOMAD Food Truck App that will allow them to alert you to additional modifications or changes they'd like to make.