We generally advise against editing products outside of the Shopify app.
This is because it can cause products to no longer be ‘recognised’ by the app as "Prodigi-related" products (which means they may be missed from your automatic order notifications).
It’s fine to change surface-level aspects of your products, like photography and pricing. These don’t have an effect on how your orders are processed. However, you shouldn’t change or attempt to add new variants (sizes, colours, etc.) outside of the app. This will not work, and could cause you a big headache further down the line if customers attempt to purchase dud product variants.
Finally, one thing you must not change is the SKU. This is how we identify print on demand products on our database. If you change it, our ordering system will most likely fail to recognise the products contained in your order completely.
