Performance Max Optimization: Performance Max Best Practices and Campaign Management

Optimize Performance Max by working the four inputs Google left open, in this order: exclusions, then assets, then signals, then budget. Start with exclusions because they are the only lever that removes spend rather than redistributing it. Apply brand exclusions account-wide, add negative keywords at account level, and exclude placements and content types that never convert for you. Then rebuild the asset groups so each one covers a coherent slice of the business instead of one group carrying every product.

Signals come third. Audience signals and search themes are hints, not targeting, but they materially shape the first few weeks of learning, and a campaign pointed at your existing customer list and your genuine top queries finds better traffic faster than one starting cold. Budget comes last, and only once the other three are sound, because raising the budget on a campaign that is cannibalizing brand search just buys more of the same problem. If you want the whole account checked in this order rather than just PMax, our Google Ads audit page walks through it.

The practices that consistently separate a profitable PMax campaign from an expensive one are unglamorous and mostly structural. They are worth treating as a setup standard rather than a list of experiments.

Probably, if brand exclusions are not on. The symptoms are specific: branded Search impression share falls while nothing about that campaign changed, PMax reports rising conversions while total account conversions stay flat, and Search cost per acquisition climbs because PMax has taken the easy conversions and left the hard ones behind. An Adalysis study across roughly 3,300 campaigns found Search converted at a higher rate than PMax when both were eligible for the same query, which is the opposite of what the PMax dashboard implies.

The fix is cheap and fast. Apply brand exclusions, make sure a brand Search campaign is live to catch the traffic, then wait a full four weeks before judging. Branded Search impression share usually recovers within one to two weeks, PMax settles into finding demand that is genuinely new, and blended cost per lead falls because you stop paying twice for the same customer. Our guide to diagnosing PMax cannibalization shows the exact reports to pull and what the numbers should look like before and after.

Search should keep the high-intent, brand, and bottom-of-funnel money, and Performance Max should be funded on top of that rather than out of it. Search is the campaign type where you still choose the query, see the search terms, and control the match, and for anything where a specific phrase signals real purchase intent that control is worth more than the extra reach. PMax earns its budget on discovery: product inventory at scale, surfaces Search cannot reach, and audiences that were never going to type your keyword.

The split depends on the business. Ecommerce accounts with a large, well-structured product feed usually justify a higher PMax share, because the feed does the targeting work. Lead generation accounts, especially expensive ones with long sales cycles, generally do better keeping the majority in Search where a bad query can be excluded by name. Either way, work out what a conversion can actually cost you first with the CPA calculator or the ROAS calculator, then judge both campaign types against that number instead of against each other.

Running Performance Max costs nothing beyond your ad spend, but having someone manage it properly is priced like any other PPC work: $1,500 to $7,500 a month with a US agency, often plus 10% to 20% of ad spend, or $500 to $2,500 a month with a freelancer. AdBot is a flat $297 to $1,497 a month with no percentage of spend and no setup fee, which is the part that matters on a campaign type designed to absorb budget.

The percentage model and Performance Max interact badly. PMax is built to spend everything you give it and to ask for more, so a manager paid a share of spend has no incentive to tell you the campaign is consuming brand demand you already owned. A flat fee removes that conflict. For the broader picture of what ongoing management includes, see our automated Google Ads management page, the Google Ads management comparison, and the breakdown of what PPC management costs.