Overview

Amazon is standardizing how product quantity and size information appears across its marketplace, automatically reformatting size values on search results and product detail pages. This initiative aims to give shoppers a consistent way to compare products, and Amazon reports that listings with properly formatted size values see higher purchase rates.

Key Points

• Automated size normalization — Amazon automatically extracts quantity data from your catalog attributes (unit count and unit count type) and converts it into standardized display format across search and detail pages
• Geographical localization — Size values displayed in format most familiar to customers based on location; same product may show different unit representations in different marketplaces
• Catalog-driven extraction — System pulls directly from existing listing attributes rather than requiring separate size inputs, making process hands-off for sellers with accurate catalog data
• Consistent cross-store presentation — Products listed across multiple Amazon stores present quantity information uniformly, reducing confusion for international shoppers

How It Works

• Attribute extraction — Amazon reads unit count and unit count type fields from product catalog
• Format conversion — System converts values into standardized display format (e.g., "500 milliliters" becomes "500 mL" or "16.9 fl oz" depending on marketplace)
• Search and detail page display — Normalized size appears in search results and on product detail page for consistent comparison
• Regional adaptation — Same product shows metric units in European marketplaces and imperial units in US marketplace

Catalog Requirements

• Accurate unit count — Ensure unit count field contains correct numerical value for product quantity
• Correct unit count type — Select appropriate unit type from dropdown (milliliters, grams, ounces, count, etc.)