To ensure the correct person receives the ordered products with auto-ordering, you would need to confirm if a supplier is a wholesaler or dropshipper.
Find your supplier under Marketplace -> My Suppliers and click on their row (not on their name!).
Here, you should see a switch to confirm if they are wholesalers or dropshippers to you. Click on it to toggle if they are a wholesaler or dropshipper.
Please note that if this setting is incorrect, you might receive a customer's order, or a customer might receive a parcel intended for you.