Where Should Your First Ad Money Go? | Decide by Measured RPS

Revenue has stabilized and you're considering your first ad campaign. Google or Meta? This is where most people decide from generalizations and impressions — "everyone says Google," "our product is Instagram-friendly."

But your pre-ads site already holds the evidence: per-channel RPS of the traffic you're getting without ads.

"Which door brings buyers" is already measured#

From the sample store's real 30-day data, the main organic rows by per-channel RPS (revenue per session):

For this store, people who arrive from search buy (Google ¥390, Yahoo ¥455). People from social don't (X ¥0). With that measurement in hand, the first candidate for ad money is search ads — your own data proves buying intent lives on the search surface. Starting with social ads instead would mean knowingly betting against your organic evidence — fine, but do it small and call it what it is: a hypothesis test.

The point is that the Google-or-Meta answer differs per site. Your table may rank differently from the sample's. Decide from your own table instead of the industry's folklore — that's the entire method.

After launch, the loop closes on the same screen#

Connect your ad spend (or enter it manually) and the channel rows gain ROAS and saturation — "is the ad actually working?" gets answered on the same screen. For reallocating, continue to asking AI for a budget split; for the quitting decision, what happens if you stop your ads.

RevenueScope shows the buying doors before you spend a yen

Per-channel RPS is bot-excluded, measured, and accumulating before you spend anything. Starting your first campaign from a measurement-backed hypothesis is the simplest way to waste less in the opening weeks.

Two boundaries: a door with high organic RPS doesn't guarantee ad-driven visitors of equal quality (creative and targeting change the mix). And cost per session lives on the ad platform's side — high RPS alone doesn't guarantee profitability.

FAQ#

Q. My organic traffic is still small and RPS is unstable.

Channels with sessions in the low double digits swing on a single order. At that stage, solidifying the growth-stage numbers usually beats ads on cost-effectiveness.

Q. What if I want to advertise on a channel not in my table (like TikTok)?

Any door without measurement is a hypothesis start, whichever you choose. Use the nearest organic analog (for social, your X or Instagram organic numbers) as a reference, spend small, and buy yourself a measurement.