Target ROAS (tROAS)
Target ROAS is a Smart Bidding strategy that bids to achieve an average return on ad spend you specify — e.g., a 400% target asks for $4 of conversion value per $1 spent.
tROAS is a throttle, not just a goal: raising the target makes the system more selective (less volume, higher efficiency); lowering it buys more volume at thinner returns. Set it from breakeven ROAS plus your profit requirement, not from what the account "usually gets".
Two operational cautions: the target applies to the value you send (revenue-based values make the target margin-blind), and large sudden changes reset learning. Move in steps and let each settle for a conversion cycle.
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