> For the complete documentation index, see [llms.txt](https://docs.abtasty.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.abtasty.com/recommendations-and-merchandising/concepts/datasets-and-fields/calculated-fields.md).

# Calculated fields

Attributes automatically computed by R\&M from existing product data (catalog + signals). They don’t exist natively in the catalog but are derived through rules or formulas.

**Examples**:

* `is_new_last_30days` → calculated from `created_at` (true if the product was created in the last 30 days).
* `relevance_score` → composite score combining conversion rate, stock, recency.
* `sales_last_30d` → number of purchases in the last 30 days, based on analytics events.
* `views_last_7d` → number of PDP views in the last 7 days.

Calculated fields turn raw catalog and analytics data into actionable signals. They enable rules like *New Arrivals*, *Trending Products*, or *Top Relevant*.


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