Within Storyous you have to select the products you want to offer in the delivery menu, for this if we access Storyous >Products, the products have a box that says "External Services", in it you must select "Deliverect".
Once marked, the selected products should be visible in the "Products" section of your Deliverect account, you will have to repeat this operation whenever you create new products in Storyous that you want to add in Deliverect.