# How to set up a composite product > Published: 2026-11-04 > Updated: 2026-11-04 > Canonical: https://finalpos.com/help/how-to-set-up-a-composite-product A composite product in Final POS is a product made up of other products — like a combo meal or gift set. Create one by selecting Composite as the product type in the Merchant Hub, adding included items or choice groups, and setting a base price. Component stock decrements automatically on every sale. ## Key takeaways - Select Composite as the product type when creating a new product in the Merchant Hub. - Use included items for fixed components and item choice groups for customer-selectable options — point a choice at a category to keep it updated automatically. - The base price covers the cheapest option in each group; upcharges apply when a customer picks something pricier, and Use price difference fills them in one click. - Component stock decrements automatically on every sale and is fully restored on a whole-bundle refund. - If any required component is sold out or unavailable at an outlet, the composite shows as Unavailable at checkout. ## What is a composite product? A composite product is a product made up of other products — a combo meal, a gift basket, an assembly kit, a tasting flight. When you sell a composite, each component's stock decrements automatically, and the whole set appears as one clean line on the receipt. Composite products are available to all merchants in the Merchant Hub. ## Create a composite product ### Step 1: Start a new product 1. In the Merchant Hub, go to **Products**. 2. Click **New product**. 3. Select **Composite** as the product type. ### Step 2: Set the basics Fill in the product's: - **Name** — the name your customers and staff will see - **SKU** — optional, for your own tracking - **Base price** — the starting price (see Pricing below) - **Categories** — assign to one or more categories, or leave blank - **Outlet visibility** — choose which Outlets offer this product ### Step 3: Add components Components are the products that make up your composite. There are two kinds: **Included item** — a single product that is always part of the composite. The customer doesn't choose; it's always included. **Item choice** — two or more products (or a whole category) that the customer or cashier picks from. You set how many they must choose. To add components: 1. Click **Add item** in the composite builder. 2. Tick one product to create an included item, or tick two or more (or select a category) to create an item choice. 3. For an item choice, choose **All of them** or **One of them, they choose**, then set the minimum and maximum picks. 4. Mark any component as **Optional** if it can be skipped. 5. Enable **Allow repeats** if the customer can pick the same option more than once. > **Tip:** Pointing a choice group at a category means any product you later add to that category automatically becomes an option — no need to update the composite manually. ### Step 4: Set pricing Your composite has one base price, which covers the lowest-cost option in each choice group. - Each additional option in a choice group can carry an **upcharge** of $0 or more. - For variable products inside a choice, each variant can also carry its own upcharge. - Click **Use price difference** on any choice or variant to fill upcharges automatically from the difference between your existing product prices. The **Pricing card** shows: - **Price** — your set base price - **Derived cost** — the combined cost of the cheapest component set - **Price if sold individually** — what the components would total at their own prices ### Step 5: Configure tax Choose one of two tax approaches: - **Each item's own tax** — tax is calculated on each component's share of the price, using that component's own tax group. Best for composites with mixed tax rates. - **One tax group for the whole composite** — assign a single tax group that applies to the full price. ### Step 6: Save Click **Save**. If any choice group has an impossible rule (for example, requiring more picks than there are options), the Merchant Hub will flag it before saving. --- ## How composite products work at checkout When a cashier adds a composite to the cart: 1. A selection screen appears showing the choice groups and included items. 2. The cashier (or customer, on a self-checkout flow) makes their picks. The cheapest option in each group is pre-selected. 3. Each component's own modifiers are available — a burger still offers toppings, a coffee still offers milk options. 4. The composite appears as one line in the cart, with component choices nested underneath. 5. The total updates as upcharges are selected. If a required component is sold out or marked unavailable at the active Outlet, the composite shows as **Unavailable** and cannot be added to the cart. --- ## Stock and inventory - When a composite sells, each tracked component's stock decrements automatically. - Stock history logs each movement and links it to the parent composite sale. - The Merchant Hub shows how many of a composite can be made at each Outlet, based on current component stock. --- ## Refunds Composite products are refunded as a whole. When you refund a composite: - All component stock is restored automatically. - Individual components inside a composite cannot be refunded separately. To refund a composite, open the order in your flow's order history or in the Merchant Hub, select the composite line, and follow the standard refund flow. --- ## Kitchen routing (food and beverage) If you use prep station routing, each component in a composite routes to its own prep station based on its category. The kitchen receives the correct tickets for each part of the order. --- ## "Used in composites" on product pages Every product page now includes a **Used in composites** card. It lists every composite that product belongs to. You can also start a new composite directly from this card. --- ## What's not included in this version A few things are intentionally out of scope for now: - Modifiers on the composite itself — components keep their own modifiers, but the composite as a whole does not have modifiers - Pre-assembled kits or recipes that build their own stock (bill-of-materials style) - Refunding a single component inside a composite - A composite inside another composite - Bundle-level discounts or promotions