Google Smart Bidding Strategies: The Complete 2026 Playbook for eCommerce
Smart Bidding is now the default for most spend — roughly 78% of Google Ads dollars run through AI bid strategies. The strategic question is which strategy, which target, and when to change it, not whether to use manual CPC.
Core strategies
| Strategy | What it does | When to use |
|---|---|---|
| Maximize Conversion Value | Max revenue in budget | New campaigns / learning |
| Target ROAS | Hit a return target | Stable monthly conversion volume (often 30+ in window) |
| Maximize Conversions | Max orders in budget | Volume-first testing |
| Target CPA | Hit a CPA target | Lead gen more than classic eComm ROAS goals |
Recommended progression
- Launch on Maximize Conversion Value with accurate purchase values.
- After 30–50 conversions, add tROAS starting below trailing average, then tighten gradually every few weeks.
- Avoid thrashing: respect learning windows after major edits.
Value-based bidding (VBB)
Encode margin or LTV in values so Google chases profitable orders, not only the easiest SKU to sell. Common 2026 pairing: broad match + Customer Match signals + margin-adjusted tROAS when volume supports it.
Smart Bidding Exploration
Simulate strategy switches before you commit — use when moving from Max Conv. Value to tROAS or testing more aggressive ROAS caps.
Traffic Booster optimizes bids across Google and Microsoft using 300+ real-time parameters tuned for eCommerce profitability.