Google Ads Expands Smart Bidding Exploration

Search Engine Land reported on 23 October 2026 that Google Ads has expanded Smart Bidding Exploration to both Performance Max and standard Shopping campaigns. If you sell products online, this rollout changes how automated bidding finds incremental search traffic.

Smart Bidding normally relies on solid conversion history. When an automated bidding algorithm in Google Ads knows what works, it sticks tightly to those queries. That discipline protects your return on ad spend, but it can stop campaigns from discovering fresh customer searches that might convert well. Exploration tackles this problem by deliberately directing a small portion of your spend toward unproven queries and placements.

How does Smart Bidding Exploration work in Shopping?

In standard Shopping and Performance Max campaigns, the exploration feature tests auction opportunities where historical conversion data is low or absent. Instead of waiting for high-confidence signals before placing a bid, the system tests these borderline auctions while staying aligned with your broader efficiency targets.

For ecommerce businesses, especially stores running on Shopify, this testing reduces the need for manual campaign splitting. You do not have to set up separate catch-all campaigns just to see which product terms generate interest. However, exploratory spend still carries risk if your margins are slim. Before testing, calculate your safety margins with our free ROAS and break-even ROAS calculator. You can also read my guide on how to maximise ROI with Performance Max brandformance campaigns to protect baseline profitability.

What it means for you

Testing new queries helps your store grow, but you should not let automated algorithms run unchecked. Here are two practical steps to take this week:

1. Check your campaign baselines. Record your current return on ad spend across all active Shopping campaigns so you can spot any sudden dips in efficiency.
2. Review your search term insights weekly. Look closely at the new search queries flowing into your account and add negative keywords if you spot irrelevant searches draining budget.