Yes, feel free to change any product field such as price, description, title, or even images of the products you add from Modalyst to your Shopify or BigCommerce store. Once a field is changed, we automatically lock it so any further changes made to the product don't overwrite your work.
In addition, we send out a daily e-mail with all product changes relevant to your store, so you are up to date and can adjust the information if necessary.
Remember that quantity is the only field you should not be altering. Changing quantity may result in incorrect information of stock levels when an order is placed in your store.