Brand Bidding Strategy for EcommerceWhy Brand Should Never Run on tROAS

Brand search campaigns should run on Manual CPC or Maximize Clicks with a hard bid cap, never on target ROAS or any value-based smart bidding strategy. Brand traffic already has purchase intent before the ad is clicked, so there's no reliable incremental signal for a smart bidding algorithm to optimize against, and letting Google's algorithm chase "efficiency" on a campaign that's already artificially efficient just wastes budget or, worse, cedes impression share it shouldn't.

The instinct to put brand on tROAS comes from seeing an inflated ROAS number and assuming it means the algorithm should have more freedom to spend. That's backwards. The inflated number is a measurement artifact, not a sign the campaign is under-optimized, and giving Smart Bidding a value target to chase on a campaign with no real optimization decision to make just adds volatility.

This post covers what actually happens when brand runs on tROAS, the bid strategy that works instead, and how to protect brand impression share without over-relying on automated bidding to do it.

What Goes Wrong When Brand Runs on tROAS

Target ROAS bidding on brand search introduces unnecessary bid volatility on a campaign that doesn't need it, since the algorithm is chasing a value signal that's already artificially high due to existing purchase intent. Worse, if the tROAS target is set too aggressively, Smart Bidding will start reducing bids and losing impression share on a campaign that should almost always be winning the auction, since the cost of losing a brand click to a competitor is disproportionately high relative to the bid savings.

This is a specific, avoidable failure mode: a brand campaign losing impression share while technically "hitting its target ROAS" in every reporting window, because the target itself was set on a distorted baseline.

The Bid Strategy That Actually Fits Brand Traffic

Manual CPC set roughly 20% above the campaign's average CPC, or Maximize Clicks with a hard bid cap around $0.20 (higher if the category's baseline CPC is already elevated), keeps brand spend predictable and protects impression share without asking an algorithm to make a decision it doesn't have good signal for. The goal on brand isn't efficiency optimization. It's capturing essentially all available brand traffic at a cost that doesn't matter much either way, because brand clicks convert at a rate non-brand traffic never will.

Never Run Pure Brand Search Below a 300% Target

If a brand campaign is somehow still being evaluated against a target ROAS framework elsewhere in reporting, anything below 300% should be treated as a red flag worth investigating immediately, not a number to optimize toward. A brand campaign underperforming that badly usually points to a tracking issue, a competitor bidding aggressively on your brand terms, or a landing page problem, not a bidding problem.

Protecting Impression Share Is the Real Brand Metric

Impression share, not ROAS, is the metric that actually matters for brand campaigns. If a brand campaign is losing impression share while otherwise hitting performance targets, that's an immediate signal to raise the budget or bid cap, because every lost brand impression is a customer who searched your name and saw a competitor first. Shopiator is a Google Ads agency for ecommerce brands, run personally by a 16-year PPC specialist with expertise in DTC, supplement/healthcare compliance, PMax architecture, and incrementality testing, and impression share loss on brand is one of the fastest, cheapest wins available in an account audit because the fix is almost always just a budget or bid cap increase.

Adding Converted Search Terms as Exact Match Brand Keywords

Review search term reports on brand campaigns regularly and add converting brand-adjacent terms as exact match keywords rather than leaving them to broad or phrase match discovery. This tightens control over exactly which queries the brand campaign is capturing and keeps the campaign's cost structure predictable, which matters more on brand than optimizing for marginal efficiency gains.