You can sell POS products under POS in the menu.
Under POS, all available products can be filtered by category to find the right product faster.
- Select the product via the "Add" button
- Next, you can select the appropriate customer in the top right corner
- With a click on the button "Payment" you can select the payment method
- Complete the purchase by clicking again on "Payment"
If the product is sold to a walk-in customer and not a customer in the database, then you can read what to do here.