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Is there enough signal in the account to optimize on?
Both platforms publish a minimum conversion volume, and both keep spending happily below it. Put in what the account actually produced and see how far it is from the floor — before you read anything into the cost per result.
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11.3 conversions per ad set per 7 days, against Meta’s stated minimum of 50.
- Per unit, per window11.3
- Published floor50
- Shortfall per unit38.7
- Units that would clear it if consolidated0
Below the floor. Consolidating will not reach it at this volume, so optimize toward an event higher in the funnel that clears 50 — and treat the current cost per result as unstable rather than as a verdict.
Both platforms wrote the number down. Neither enforces it.
Every figure here is quoted from the platform’s own documentation, linked in the last column. Nothing in this table is our estimate.
| Platform & strategy | Published minimum | Level it applies to | Source |
|---|---|---|---|
| Meta — any optimization event | 50 events / 7 days | per ad set | Meta for Developers |
| Google Search & Shopping — Target ROAS | 15 / 30 days | conversion-tracking level | Google Ads Help |
| Google Display — Target ROAS | 15 / 30 days | across all campaigns | Google Ads Help |
| Google Demand Gen — Target ROAS | 50 / 35 days | per campaign, 10 in the last 7 | Google Ads Help |
| Google Video Action — Target ROAS | 30 / 30 days | per campaign | Google Ads Help |
| Google — any Smart Bidding, for reading results | 30 conversions (50 for Target ROAS) | over the period you evaluate — “a month or longer” | Google Ads Help |
Read the last row carefully: Google frames 30 (and 50 for Target ROAS) as the volume you need to evaluate performance, not as an eligibility gate. That is the honest version — the campaign will run below it, and the number it reports back will move for reasons that have nothing to do with your changes.
Tidy structure is how accounts fall under the floor.
Nothing warns you. A campaign below the threshold spends exactly like one above it: delivery stays exploratory, the cost per result swings on small numbers, and every weekly report reads as a performance story rather than a sample-size story. The platforms publish the floor and then let you run underneath it indefinitely.
The most common way in is organisation. Split one healthy campaign carrying 90 conversions a month into six tidy product campaigns and you get six units of 15 — all under Google’s evaluation floor, all thrashing, all worse than the one you started with. That mechanic, and the structure that avoids it, is in Google Ads account structure in 2026.
On Meta the same thing happens through scaling: a large budget change re-opens the learning phase, and the ad set needs the 50 events again from a standing start. How to scale a winner without breaking it covers the step size that avoids the reset.
And when the volume genuinely is not there, the useful answer is a refusal rather than a target. Adgent’s Trust Gate is that refusal in the product: it declines to build on an event the account cannot feed, using the account’s own numbers as the reason — a pixel with four purchases in thirty days is running at about one a week against a floor of fifty in seven, and no bid strategy fixes that.
- Volume is not correctness. Clearing the floor says the optimizer has enough examples to learn from. It says nothing about whether the conversions are counted once, valued correctly, or attributed to the right click.
- Day-one numbers are not final. Meta’s 7-day click window keeps rewriting yesterday, so a thin account looks worse in the morning than it will by Thursday. Why day-one data reads pessimistic by construction.
- The floor is per event. Optimizing three ad sets toward three different events splits the signal three ways even when the account total looks healthy. Pick the deepest event that clears the floor, and judge the rest on the business outcome.
Conversion volume, answered.
How many conversions does Meta need to exit the learning phase?
How many conversions does Google Smart Bidding need?
What should I do if the account is below the floor?
Does clearing the floor mean the numbers can be trusted?
See which of your ad sets are actually under the floor.
This page works on one number you type. We will run the check across every campaign and ad set on your live accounts — read-only — and show you the ones optimizing on too little to learn from.
- Read-only — nothing is changed
- Per ad set and per campaign, not an account average
- Findings you can check line by line in Ads Manager
The brief Adgent would write on day one, the leaks it found and what they are worth — and, where the data cannot carry a verdict, what it will not call yet and why.
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