POS Now that you are done with purchasing a product, you can now proceed to start selling your products by going to the Invoice Create page. 2. Once you have opened the POS page, you will need to select a warehouse to view all available items there. 3. Now that you have selected a warehouse, select products from the left to add it to the cart for checkout. You will also need to select customer info, any manual discounts if applicable and payment information. 4. If you have variants, you will be prompted to select the specific variant that you want to check out with. 5. Once you are done, press confirm and you can view the newly created invoice in the invoice list.