---
title: How do I use category-average data when I have no part number?
description: Learn how to add a product to your e.tool report using category-average data when you do not have a manufacturer part number.
---

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12 August 2026

# How do I use category-average data when I have no part number?

## Search for and apply category-average data to a product line

If you do not have a manufacturer part number (MPN) for a product, you can still add it to your report using category-average data. Category-average data acts as an umbrella value covering all products in a given category, so you select the category that matches your product rather than an individual model.

To add a product using category-average data:

1. Open your project and select the **Solutions** tab (step 2) at the top of the screen.
2. In the **Products** panel, select the **Product Search** field. (The field is labelled "Use MPN for highest accuracy", which applies when you do have a part number.)
3. Type **category** into the search field.
4. From the list that appears, find the entry that matches your product's category, for example **Category Average Notebook**, **Category Average Monitor** or **Category Average Smartphone**. Each entry is shown with the brand **Generic**, an MPN and model of "Category Average \[product type\]", and a green **CA** badge.
5. Select the matching entry to add it.

You will see a **"Device has been added"** confirmation, and a new line will appear in the Products list. The line shows the category name and icon, the brand **Generic**, the MPN and model "Category Average \[product type\]", and the green **CA** badge, confirming that category-average data has been applied. You can then set the **Quantity**, adjust the **Lifetime (months)** value, and use the **Refurbished** toggle as required.

#### Notes and exceptions

The category, rather than a specific model, is selected by choosing the "Category Average \[product type\]" entry that matches your product, such as a notebook, monitor or smartphone.

The **CA** badge on a line indicates category-average data. Where a product does have a part number, entering the MPN in the Product Search field gives the highest accuracy and may allow more precise methods to be applied instead.

If you need further assistance, contact [support@rejoose.com](mailto:support@rejoose.com).

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