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# Why are products duplicated?

A product is duplicated **when there are differences** in the following elements of the invoice, delivery note, or receipt:

🍎  [The description](#3-the-description-is-different)

📦  [The purchase format](#3-the-purchase-format-is-different)

🚚  [The supplier](#3-the-supplier-is-different)

If you want to view a joint analysis of two **different products**, group the products. See how to do it in the [product grouping article](https://support.haddock.app/en/article/how-to-group-and-ungroup-products-1cylecx/).

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### 🍎 The description is different

If the product description differs, two separate products will be created.

*Example:* The products "Ice" and "Bagged ice", even if they have the same format and supplier, will be two separate products.

**✨ Solution:** Group the products. Follow the steps in the article ["How to group products"](https://support.haddock.app/en/article/how-to-group-and-ungroup-products-1cylecx/)

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### 📦 The purchase format is different

*"We can't compare boxes with kilos"*

If the purchase format has been digitized differently, the product will be treated as two different products.

*Example:* Even if the product "Ice" has the same description and supplier, if there is one purchase in "kg" and another in "bags", they will be two separate products.

**✨ Solution:** Group the products. Follow the steps in the article ["How to group products"](https://support.haddock.app/en/article/how-to-group-and-ungroup-products-1cylecx/)

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### 🚚 The supplier is different

If you buy a product from two or more suppliers, by default it will be treated as different products.

![](https://storage.googleapis.com/helpdesk-haddock-images/products/why-are-products-duplicated/images/01-the-supplier-is-different.png)

*Example:* Even if "Ice" has the same description and purchase format, if there is one purchase from "Makro" and another from "Harbest Market", they will be seen as two separate products.

**✨ Solution:** Group the products. Follow the steps in the article ["How to group products"](https://support.haddock.app/en/article/how-to-group-and-ungroup-products-1cylecx/)