Before you start working on orders. First, you need to set up your warehouse and a couple more initial steps.
1. How to set up your warehouse, please read the article – https://orderadmin.freshdesk.com/ru-RU/support/solutions/articles/35000180992–3-5-create-a-warehouse
2. Now that you have a warehouse, you can create a store. More details about that in the link below ->