Smart Bidding has always had a blind spot: it optimizes for whatever conversion value you report, and most Shopping and Performance Max advertisers report revenue per sale without any margin data attached. A conversion on a low-margin commodity product is weighted the same as a conversion on your highest-margin hero SKU. The algorithm doesn't know the difference, and until now, there was no practical way to tell it.
Google's Product Value Optimization beta changes this. Spotted by Google Ads consultant Adriaan Dekker and covered by Search Engine Land in September 2026, the feature lets advertisers apply custom value multipliers to specific products or product attributes — brand, category, custom label — directly within Smart Bidding, without restructuring their campaigns.
What the feature actually does
You create a value adjustment rule tied to a product attribute in your Merchant Center feed. You tell Google that a specific category, brand, or custom label group is worth X times more (or less) than your baseline conversion value. Smart Bidding incorporates that multiplier when deciding which impressions to bid on.
This differs from conversion value rules, which adjust value by audience segment or device. It also differs from campaign segmentation, which requires splitting your catalog to signal which products matter more. Product Value Optimization signals that preference at the product attribute level, inside a single consolidated campaign.
That matters because Google has spent two years pushing consolidation: AI Max migration, DSA retirement, fewer granular controls. This feature is the direct lever you get in return, a way to guide the algorithm's priorities without fragmenting your data or fighting the platform's current recommendations.
Where it changes the math
Brands with mixed-margin catalogs are the clearest case. High-margin lines alongside entry-level commodity items currently get treated identically by Smart Bidding. A value multiplier on the high-margin segment gives the algorithm the signal it needs to bid more aggressively for those conversions rather than distributing effort evenly across products with very different business value.
Seasonal clearance is the second case worth knowing. If you're moving overstock, a negative multiplier tells Google to deprioritize those products in the bidding queue: not to stop serving ads on them, but to stop competing hard for every impression while your better-margin inventory is in the same auction.
Owned brand alongside reseller inventory is the case that often goes unnoticed. When high-conversion-rate resale products dominate Smart Bidding at the expense of your own branded lines, a value adjustment corrects the skew. Smart Bidding follows conversion rate and revenue unless you explicitly tell it to weight something else.
For new product launches, a modest value boost on proven performers keeps the bidding comparison fair during a launch window, so a new SKU can build early data without pulling budget away from your established revenue base.
What it doesn't fix
This feature multiplies your existing conversion signal. If your tracking is incomplete (last-click attribution applied to DDA campaigns, missing server-side events, duplicate conversion actions), the multiplier amplifies the noise, not the signal. Fix measurement before adding value adjustments to unreliable data.
Feed quality is also a prerequisite. Product Value Optimization hooks into attributes already in your Merchant Center feed. If you haven't encoded margin tiers into custom label fields, there's no attribute to write a rule against. The data has to exist in the feed before the feature can use it.
And it's beta. Access is limited. Google has not confirmed a general availability timeline beyond "2026."
What to do before it reaches your account
Add a margin or profitability tier to your Merchant Center feed using custom_label_0 through custom_label_4. A simple three-value taxonomy works: something like "high," "mid," "standard" is enough to write meaningful rules. Feed updates take time to propagate through Google's index, so starting now means the attribute will be available when access opens up.
Then pull a 90-day product-level performance report and compare ROAS or revenue per SKU against your actual cost of goods. You need to know which products are your real margin drivers before assigning multipliers. Merchant Center's best sellers report shows what converts; your own cost data tells you which of those conversions are actually worth the most to your business.
Neither step requires being in the beta. Both ensure you can act the day access arrives.
If your best-converting products aren't your most profitable ones, your current bidding setup is optimizing against your margins. The free audit at Gromerce surfaces the conversion value distribution across your active Shopping and PMax products in about three minutes.
Sources: Search Engine Land, September 2026
