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# Using the Stock Break-even Option - Amazon Marketplace Plus

The **Stock Break-even** option allows you to deduct a fixed quantity from your actual stock before exporting it to Amazon. This is useful for keeping a safety stock or avoiding overselling.

Example:  
* Real stock: 10  
* Stock Break-even: 2  
→ Exported stock: 8

**Note:** If your real stock is lower than the specified amount, the exported stock will be **0**.

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## Steps to Follow

### 1. Enable Expert Mode

First, activate Expert Mode in the module:  
👉 [How to activate Expert Mode](https://doc.common-services.com/en/article/activate-the-expert-mode-amazon-marketplace-plus-ux677a/)

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### 2. Go to the Marketplace Tab

Navigate to:  
`Modules > Amazon > Configure > Marketplace Tab (e.g. Amazon UK)`

![Marketplace Tab](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/screenshot1673_6vsd3q.jpg)

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### 3. Set the Stock Break-even Option

In this tab, you will find:  
**Stock Break-even** – *Quantity to deduct from real stock before export*

* Enter **a positive number** → that quantity will be deducted from the real stock.
* Enter **a negative number** → that quantity will be added to the real stock.

This helps you fine-tune the exported stock according to your strategy.

![Stock Break-even option](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/screenshot1674_1kpl8lr.jpg)


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## Example 1 – Keep Reserve Stock

You want to keep 3 units in reserve.

* Real stock: 20  
* Stock Break-even: 3  
→ Exported stock: 17

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## Example 2 – Force Extra Stock

You are taking pre-orders or expecting new inventory.

* Real stock: 0  
* Stock Break-even: -10  
→ Exported stock: 10