First setup

Six short walkthroughs that put one real thing each into your tenant, in the order that works.

Do these in order. Each one depends on the one before it: prices need products, customer prices need customers, a storefront needs all three, and an order needs a storefront to be placed in. Every walkthrough is short by design. It gets one real thing working, tells you what to check, and hands you on to the guide chapter and the Product Help page that go deeper.

Use real data throughout. One article from your own catalog with its real attributes, one price from your real price list, one customer you have supplied for years. Test data proves nothing, because it never has the awkward field.

When all six are done you have proved the chain end to end. Going live turns that into a plan.