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

# Product performance and relations

> Read a product's sales performance and define how products relate to each other

Two tabs of the product form help you understand and structure your offer: **Performance** shows how a product sells, and **Relations** records how it relates to other products. Both are available once the product is created.

## Performance tab

The **Performance** tab shows the product's sales on quotes. Use the **Status** filter to switch between:

* **Accepted**: quotes with the status Accepted
* **In progress**: quotes that are Published or Pending signature

Results are grouped by currency ("Currency: EUR", for example).

### Metrics

| Metric | Description |
| - | - |
| **Total revenue excl. tax** | Revenue from the product on the selected quotes, excluding tax |
| **Units sold** | Total quantity |
| **Avg margin** | Average margin on the product |
| **Quote count** | Number of quotes that include the product |
| **Avg sale price** | Average unit price |

### Charts and breakdowns

* **Revenue & units - 12 months**: monthly **Revenue** and **Units** over the last 12 months
* **Performance by variant**: **Units**, **Margin**, and **Revenue** for each variant
* **Top 5 customers**: the five main customers for this product

If the product hasn't been sold yet, the tab shows "No data found for this product on accepted quotes."

## Relations tab

The **Relations** tab defines relations between products. It is available on the Enterprise plan, after the product is created. When a product has variants, relations are set on each variant's **Relations** tab.

### Product-to-product relationship

| Relation | Meaning in the app |
| - | - |
| **Required** | If the product is added, the following products will be added automatically |
| **Substitute** | If this product is out of stock or disabled, the following products will be suggested as substitutes |
| **Upsell** | If this product is added, these alternatives (often higher-tier) will be suggested to replace it |
| **Cross-sell** | If the product is added, the following products will be suggested as add-ons |

For each relation, search for and select the related products.

### Product component

**Components** lists the products that make up your product, each with a quantity (**Qty**). Use it for stock management or to generate a bill of materials.

## Related

> **[Create a product](https://docs.qwoty.io/user-guide/catalog/how-tos/create-product.md)**
>
> Product form tabs and fields

> **[Manage variants](https://docs.qwoty.io/user-guide/catalog/how-tos/manage-variants.md)**
>
> Set relations on each variant

> **[Margin](https://docs.qwoty.io/user-guide/quotes/reference/margin.md)**
>
> How margin is calculated and shown on quotes

> **[Quote list and analytics](https://docs.qwoty.io/user-guide/quotes/reference/quote-list-and-analytics.md)**
>
> Sales indicators across all quotes


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