> ## Documentation Index
> Fetch the complete documentation index at: https://help.experro.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Best Seller

The **Best Sellers** algorithm surfaces your top-performing products—those with the highest sales volume and revenue over a recent period. By showcasing proven favorites, you build trust, leverage social proof, and drive additional conversions across your storefront.

<img src="https://mintcdn.com/experro/8leTCfwCNMk4X8PP/images/discovery/bs_example.png?fit=max&auto=format&n=8leTCfwCNMk4X8PP&q=85&s=a4c8c834b45d0a638c32b6ee2c9db8ca" alt="" width="1345" height="642" data-path="images/discovery/bs_example.png" />

<Tip>Recommended Placements
<br /><br />**Home Page** : Showcase the site-wide best sellers to new visitors.\
<br />**Category Pages** : Highlight top-selling items within each category (e.g., “Top-Rated Boots”).\
<br />**Product Pages**  : Display “Best Sellers” in the same category to encourage cross-selling. </Tip>

## How It Works

1. **Sales Data Aggregation**\
   Continuously ingests transaction records to track purchase frequency, quantities sold, and total revenue per SKU.

2. **Time-Window Analysis**\
   Applies a configurable look-back period (e.g., 7, 30, or 90 days) so that best sellers reflect current buying trends.

3. **Contextual Scoping**
   * **Global:** Ranks the entire catalog.
   * **Category:** Limits to items within the current category context.
   * **Product Page:** Recommends other best-selling items related by category or tag.

4. **Dynamic Updating**\
   Automatically refreshes rankings in real time as new sales occur, ensuring recommendations stay up-to-date.

## Supported Rule Types

* **Global**
* **Home Page**
* **Category**
* **Product**

## When to Use

* **Boost Social Proof:** Leverage proven favorites to reassure shoppers and reduce decision fatigue.
* **Engage New Visitors:** For users with no history, best sellers provide a strong starting point.
* **Seasonal Campaigns:** Align “Best Sellers” with seasonal collections (e.g., “Summer Best Sellers”).

## Example

A shopper views a **Sofa** product page:

1. The **Best Sellers** widget displays the top 6 sofas by sales volume over the last 30 days.
2. As the customer browses, real-time sales updates ensure the list reflects any new top performers.

By highlighting your most popular items, you tap into collective buying behavior—driving trust, engagement, and incremental revenue.