> ## 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.

# Frequently Viewed Together

The **Frequently Viewed Together** widget analyzes what products customers tend to browse in the same session and surfaces those as suggestions—helping shoppers discover complementary items and boosting engagement.

<img src="https://mintcdn.com/experro/4fPtPqhyselHfqmM/images/discovery/fvt_example.png?fit=max&auto=format&n=4fPtPqhyselHfqmM&q=85&s=4a3fb7e2fe3cbeda087eb401f2dd6d58" alt="" width="1347" height="533" data-path="images/discovery/fvt_example.png" />

<Tip> **Recommended Placements**\
<br />**1. Product Page:** Show items often viewed alongside the current product\
<br />**2. Cart Page:** Suggest related products based on cart contents\
<br />**3. Checkout:** Offer last-minute browsed items before purchase\
<br />**4. Homepage:** Display a generic “Customers Also Viewed” feed for returning visitors </Tip>

## How It Works

1. **Interaction Matrix Construction**\
   The algorithm builds a customer–product matrix capturing views and clicks.

2. **Similarity Computation**\
   Products that frequently co-occur in the same sessions receive higher similarity scores, reflecting their propensity to be viewed together.

3. **Session Context Boosting**\
   If the shopper has active session data, products viewed earlier in that session are boosted to the top of the recommendations.

4. **Fallback Handling**\
   When no session or historical view data exists, an optional fallback algorithm (e.g., popular or hot new items) can fill the widget to avoid an empty state.

## Supported Rule Types

You can scope FVT behavior at multiple levels, each of which can override the global settings:

* **Global** (default for all placements)
* **Home Page**
* **Product Page**
* **Cart Page**

## Behavior for Non-Logged-In Users

* **With Session Activity:** Displays FVT based on products viewed in this session.
* **Brand-New Visitors:**
  * **Fallback Disabled:** If the user is on the product page, it will show the suggestions that are made to get started with the current product. ⦁	If the user is on the home page, it will not show any suggestions because there is no browsing history.
  * **Fallback Enabled:** Shows fallback algorithm suggestions to mitigate cold start.

## Behavior for Logged-In Users

* **Returning Customers:** Combines long-term view history with current session to refine FVT picks.
* **Newly Registered (No History):**
  * **Fallback Disabled:** If the user is on the product page, it will show the suggestions that are made to get started with the current product. ⦁	If the user is on the home page, it will not show any suggestions because there is no browsing history.
  * **Fallback Enabled:** Fallback suggestions fill the widget, guiding new users.

## When to Use FVT

* **Complementary Discovery:** Offer accessories or variants frequently explored together (e.g., phone cases with smartphones).
* **Browsing Inspiration:** On PDPs, help shoppers discover related products they might otherwise miss.
* **Cart Encouragement:** Surface recently viewed items to reduce drop-off before purchase.

## Example Scenario

1. A shopper views a **linen summer dress** on your PDP.
2. FVT identifies that other customers often also viewed a **straw hat**, **sunglasses**, and a **woven tote bag**.
3. A “Frequently Viewed Together” carousel appears—encouraging the shopper to explore those complementary items.