> ## Documentation Index
> Fetch the complete documentation index at: https://docs.siftly.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Commerce Control
> Measure operational control on the AI shelf: buy-button ownership, price competitiveness, and merchant breadth across your catalog.
## Overview
Being on the shelf is one thing; controlling the sale is another. Commerce Control measures how much **operational control** you have over the products that appear in AI shopping answers: who owns the buy button, how your pricing compares, and how widely your products are stocked.
## Key metrics
| Metric | What it tells you |
| ------------------------------ | -------------------------------------------------------------------------------------------------- |
| **Buy-button owned share** | The share of your products where you own the primary buy button (versus a marketplace or retailer) |
| **Merchant breadth** | The average number of merchants carrying each product, a read on distribution |
| **Buy-button price rank** | Where your price ranks among sellers (1 = cheapest) |
| **Buy-button price premium** | How much above or below the market median you're priced |
| **Relative Price Index (RPI)** | Your price versus the competitive average |
| **Value Hit Ratio** | The share of your products priced at or below the competitor average |
## Availability by merchant
A table shows which merchants carry each product and their stock status, so you can spot out-of-stock or under-distributed items that are costing you shelf presence.
## Filters
Scope everything by **geography** and drill into a single **product** to see its pricing position and competitor set.
High Share of Shelf with a weak buy-button share means AI is recommending your products but sending the sale elsewhere. That's a signal to prioritize owning the buy button on those items.
## Related
See presence alongside control.
Drill into per-product pricing and readiness.
Improve the product data behind the shelf.
Understand RPI and Value Hit Ratio.