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The short answer
Thirty conversions a month across one campaign is enough for Smart Bidding to learn. Split across ten campaigns, it is three each, and none of them can. Oppy flags accounts where no campaign reaches that volume alone, but the account does together.
Why it matters
It is the most common structural fault in a small account, and it is always well meant: one campaign per product, per region, per match type, to keep control.
The cost is that every campaign starves. None has enough data to bid well, and the control was bought with the thing that made it worth having. Google recommends judging a strategy like target CPA over a period with at least 30 conversions, and a split account rarely gets there.
How Oppy decides
The check runs on accounts with conversions and reads every campaign that spent recently.
Checks that weigh money or clicks judge what they find on your own account's numbers, not on one figure applied to every account, so what counts as a problem on a small account is not the same on a large one. Checks on settings read how the account is set up.
When there is too little to go on, the check says so instead of guessing. A finding always comes with the rows behind it, so you can read the evidence before you decide.
| This check | |
|---|---|
| Step of the audit | Structure |
| What it reads | Campaigns, their settings and their results |
| Needs trustworthy conversions | Yes. It stays silent when the tracking step fails. |
| What happens next | Reported in the audit with the rows behind it. The decision stays with you. |
Check it yourself in Google Ads
- In Google Ads, open Campaigns for the last 30 days.
- Keep the campaigns that spent, and count them.
- Add up conversions for the account, and note the best single campaign.
- If you have several, the account as a whole has the volume Smart Bidding needs, and no single campaign does, the budget is spread too thin.
What to do about it
Merge campaigns that share a goal, a bid strategy and a budget logic. Keep splits only where they change something real: a different country, language, margin or budget owner.
Use ad groups and asset groups for organisation, not campaigns. They keep reports readable without dividing the data the bidding learns from.
Terms on this page
Other checks in this area
The checks next to this one in Budgets and pacing, each with its own page.