A campaign on a target CPA of €40 that achieves a CPA of €40 is "meeting its target". But if the business needs those leads to turn into sales at a ROAS of 5 and the real ROAS is 2, the campaign is failing, however proud Smart Bidding may be. The distinction between the strategy target (what Google chases) and the business target (what you need) is the heart of advanced bid management. This lesson builds the "judge" that separates the two.
Two targets, two questions
| Strategy target | Business target | |
|---|---|---|
| Who sets it | You, in the campaign settings | You, in a sheet, from the margin and the economics |
| Who chases it | Smart Bidding | Nobody, unless you judge it yourself |
| What it measures | The CPA or ROAS of the conversions the strategy uses | The CPA or ROAS of the conversions that matter, over the business's window |
| The question | Is Google delivering what I asked for? | Is this campaign actually worth it? |
The target is a tool for reaching the goal, not the goal. You may need a €35 target to achieve a business CPA of €40 (because there are conversions the strategy does not count), or a €50 target to achieve €40 (because the strategy is counting conversions the business does not need).
The cross-mode case
It happens constantly and almost nobody looks at it:
- A campaign on target CPA (lead acquisition) whose business is measured in ROAS (because some leads are worth ten times more than others). The judge has to look at the real value of the conversions, not at how many there are.
- A campaign on target ROAS (ecommerce) whose business is measured on the CPA of new customers (because repeat purchases inflate the order value).
- A campaign on Maximize conversions with no target: there is no target to meet, but there is a business target to judge.
The judge therefore needs to know, for each campaign, two things that are not in Google Ads: its business target (CPA or ROAS and its figure) and which conversions count towards it.
Reference conversions
Each campaign has a reference conversion action (or actions) for the judge: the ones that mean money for that business. They may match the account's primary actions... or not. Examples:
- Acquisition: the reference conversion is "qualified lead" (uploaded offline from the CRM), not "form submitted".
- Ecommerce: "purchase" with its value; not "add to basket", even if that is the primary action for another campaign.
- Brand: "any conversion", but judged on impression share, not on CPA.
This is stored outside Google Ads: a sheet with the campaign (by its ID, not by its name), the type of target, the target figure, the reference conversions and the evaluation window.
The judging method
Every week (or every night, if it is a script), per campaign:
- Window: the last 14-30 complete days, excluding the conversion lag.
- Minimum volume: if there are fewer than ~10 reference conversions in the window, the verdict is "no data": leave it alone.
- Calculation: CPA or ROAS using the reference conversions, against the business target.
- Verdict: meeting it (within ±15%), beating it (better than the target by more than 15%), missing it (worse by more than 15%).
- Context: lost IS (budget) and lost IS (rank), learning status, recent changes.
What to do with the verdict
| Verdict | Lost IS (budget) | Action |
|---|---|---|
| Beating it | High | Raise the budget by 10-20%: there is profitable demand going unbought |
| Beating it | Low | Loosen the target (CPA +10% / ROAS −10%): buy more volume at a slightly higher price |
| Meeting it | Any | Nothing. Let it work |
| Missing it | — | Do not touch bids first: review the terms, the ads, the landing page and the measurement; if all of that is fine, tighten the target by 10% and wait |
| Missing it badly (CPA > 2× the target, sustained) | — | Lower the budget to limit the damage while you diagnose |
| No data | — | Wait; if it has gone months without data, consider a portfolio or a merge |
And the usual rule: one move per campaign per cycle, small, logged, with a wait before the next judgement.
The classic mistake: judging by the target
A campaign with a €40 target and a CPA of €39 shows up "green" in Google Ads. The judge, using the reference conversions (qualified leads, not forms), calculates a real CPA of €160: 75% of the forms were not customers. The campaign had spent months "meeting its target" while losing money. Without a judge of your own, Google Ads would never have told you — it cannot: it does not know which forms were any good.
💡 Ninja trick: this lesson is the specification for the Suite's Smart Bidding (SBNS). In its sheet you store, per campaign (by ID), the business target — CPA or ROAS, even cross-mode with respect to the strategy — and its reference conversions. Every night the judge calculates performance using those conversions, never the target, and applies gradual budget and target moves with an anti-anomaly threshold and a log of every change. With Lead Rating, the reference conversions are also the valued leads: the judge judges on real money.
What you should remember
- Target ≠ business target: the target is the tool; the business target is the goal. You judge on the second.
- Cross-mode is normal: a campaign on CPA judged on ROAS and vice versa.
- Each campaign has reference conversions and a target stored outside Google Ads, by ID.
- Judge with a window, a minimum volume and a verdict at ±15%; actions depend on the verdict and on lost IS.
- One small move per cycle, logged.