> For the complete documentation index, see [llms.txt](https://docs.tipo.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tipo.io/settings/sync-master-with-component-inventory-bundle-groups.md).
# Sync Master with Component inventory - Bundle Groups
When you sell **bundle products**, the “Master” product (the bundle listing) should only be available if the **component items** are in stock.\
This setting helps you keep the bundle inventory accurate automatically.
### ✅ What this setting does
When **Sync Master with Component inventory** is enabled:
* The **Master** variant inventory is calculated from **component** inventory
* When component stock changes (sale, restock, manual adjustment), the **Master** updates automatically
* Helps prevent overselling bundles that can’t be fulfilled
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### 🔑 Key terms
* **Master product / Master variant**: the bundle listing customers buy (e.g., “Gift Set”)
* **Component products**: items inside the bundle (e.g., Candle + Soap)
* **Required quantity**: how many units of each component the bundle needs
### ⚙️ Where to turn it on
1. Open the app > click **Settings**
2. In **Bundle groups**, enable **Sync Master with Component inventory**
3. Click **Save**
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### ✅ How the inventory is calculated
The app checks each component’s available stock and calculates how many full bundles you can make.
**Example**
Your Master variant **“Gift Set”** includes:
* **2 × Product A**
* **1 × Product B**
Current stock:
* Product A = **6**
* Product B = **5**
Calculation:
* Product A allows: **6 ÷ 2 = 3 bundles**
* Product B allows: **5 ÷ 1 = 5 bundles**
⇒ Master inventory becomes: **min(3, 5) = 3 bundles available**
So the bundle will show **3** in stock.
**🙋 Still need support?**
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