How do I connect my Shopify store?

In onboarding, type your .myshopify.com address and press Connect. Shopify shows you its own approval screen listing the read scopes nouz is asking for, you approve, and you land back in nouz.

There are no API keys to create and nothing to install in your theme. Base covers one store, so connect the one you want to track. Pro covers up to five and Scale up to ten, each with its own costs, its own rules and its own P&L.