Google Ads 8 Product Metrics & Cart Data Attribution Guide (2026): Product Clicks, Non-Product Clicks & CwCD Gross Profit

Executive Summary & Research Scope

In-depth synthesis of Google Ads official documentation #17035334, #17034525 (Product clicks), #17034622 (Non-product clicks), and #9028254 (Conversions with Cart Data). Master the exact attribution rules for multi-product ads, implement cart-level items[] tracking, upload cost_of_goods_sold [cogs] in GMC, and unlock Cross-Sell and Gross Profit reporting in Report Editor.

1. Product Clicks (#17034525) vs. Non-Product Clicks (#17034622)

With multi-product ad formats dominating Performance Max, Demand Gen, and YouTube Action campaigns, Google split click measurement into two distinct product-level columns:

• Product clicks (formerly Clicks, #17034525): Counted only when a user clicks directly on a specific product card to visit the landing page, view product details, or expand a multi-image product view. Only that specific SKU receives 1 Product click.
• Non-product clicks (#17034622): Counted when a user clicks a non-product element of an ad that contains products—such as the main headline, sitelink, brand logo, or video expand button. Crucially, every product displayed in that ad impression receives 1 Non-product click.

Figure 1: Google Ads 8 Product Metrics & Cart Data Attribution Guide (2026): Product Clicks, Non-Product Clicks & CwCD Gross Profit — Primary Source Visual Evidence & Architectural Diagram (1)

2. Multi-Product Ad Credit Rules across 8 Core Metrics (#17035334)

Understanding how Google Ads assigns credit across the 8 product metrics prevents costly bidding mistakes:

• Impressions & TrueView views: Every product shown in the ad (or accompanying a 30-second TrueView video view) receives 1 count.
• Cost & Conversions: Only ads that showcase products are included. When a user interacts with multiple products in the same ad, all interacted products are credited with the ad's cost and conversions; conversions resulting from non-product clicks are associated with all products shown in that ad.

3. Conversions with Cart Data (CwCD #9028254) & Gross Profit Optimization

Standard conversion tracking cannot distinguish whether a shopper bought the exact product they clicked (Advertised Product) or a different item in the store (Cross-Sold Product). By deploying Conversions with Cart Data (CwCD) and supplying cost_of_goods_sold [cogs] in Google Merchant Center:

• Lead Orders vs. Cross-Sell Matrix: Open the predefined Cart items cross-sold report in Report Editor to see which low-margin traffic-driver SKUs generate high-ticket cross-sell baskets.
• True Gross Profit Bidding: Calculate exact product-level Gross Profit (Revenue - COGS) and segment high-margin SKUs via custom_label_0 for aggressive tROAS scaling.

Actionable Implementation Checklist & Strategic Takeaways

1. Action Item #1: Add both Product clicks and Non-product clicks to your custom columns in the Products tab to distinguish direct SKU intent from headline/video engagement.
2. Action Item #2: Pass the full ecommerce.items[] array (with item_id matching GMC id) on purchase events to enable Conversions with Cart Data (#9028254).
3. Action Item #3: Populate cost_of_goods_sold [cogs] in your GMC feed to unlock native Gross Profit reporting and protect high-cross-sell lead items.

Cross-Channel Growth & AI Citation Matrix