# Check your learning Zen Electron Trade is onboarding a new buyer: **Meridian Facilities**, a property services company with two semi-autonomous regional teams, North and South. Both teams buy the same catalog at the same negotiated prices, but each team needs its own delivery addresses, and the company wants headquarters to retain visibility over all orders. As the Functional Architect, you need to decide how to structure the Business Units, configure Store assignment and inheritance, and avoid the common pitfalls that block checkout. Work through the following questions to confirm your understanding. ## Next module Well done for completing the Model buyer organizations module. You can now design Business Unit hierarchies and predict how Stores and other data inherit across them. In the next module, **Configure associate access**, you will learn how to model who can act on behalf of a buyer organization and what they are allowed to do, using Associates, Associate Roles, and permissions. ## Related pages - [Area overview page with navigation](/learning-model-b2b-commerce.md) - [Previous page: Stores and Business Units](/learning-model-b2b-commerce/model-buyer-organizations/stores-and-business-units.md)