> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://doc.common-services.com/sitemap.xml
> Use this file to discover available pages before exploring further.
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# Differentiating between an offer and a product - Amazon Marketplace Plus

To better understand how marketplaces like Amazon work, let’s take a simple example:

Imagine you're looking at a store window. A T-shirt catches your eye.  
You enter the store, head to the relevant section, and find the T-shirt available in various sizes, colors, and prices.  
These different options are what we call **offers**.

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### Product vs Offer

On marketplaces, the principle is similar:

* **The product** refers to the main listing: images, description, features.
* **The offer** refers to the selling terms: price, quantity, condition (new or used), reference.

Marketplaces handle these two elements **separately**:

* **Products** make up the general catalog.
* **Offers** are the commercial proposals made by sellers for those products.

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### "Matching" on Amazon

If a product already exists in the Amazon catalog but is not yet present in your seller account, you can create **an offer linked to this existing product**.  
This process is called [**matching**](https://doc.common-services.com/en/article/matching-automatic-offer-creation-amazon-marketplace-plus-mtz42n/): your offer is then associated with an already listed Amazon product.

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### Synchronization on Amazon

If your offer is already present in your Amazon account, the module can [synchronize](https://doc.common-services.com/en/article/sending-syncing-offers-amazon-marketplace-plus-1pz0psa/) it to automatically update your **prices** and **stock levels**.

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### Product creation 

This feature allows you to [create new product listings](https://doc.common-services.com/en/article/creating-new-products-amazon-marketplace-plus-5evxbs/) that do not yet exist in the Amazon catalog (without an ASIN).  

It is **optional** and intended only for sellers offering products that are not yet listed.  
It requires a solid understanding of your catalog and the specific marketplace rules.


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### On PrestaShop

In PrestaShop, there is no technical distinction between a product and an offer.  
We generally refer to everything as a **product**, which can be confusing when working with external marketplaces.

Understanding this difference is essential to correctly set up your synchronization.