What does "scale" mean in ad reports?
What does it mean to scale a campaign?
Raise the budget, add audiences, add channels or add products. All of that is "scaling". The report line usually reads: "Campaign X performs well and is ready to scale."
The campaign is ready to scale. The warehouse would like a word.
That is the trouble with the word. It describes an action, not a condition. "Ready" depends on a number, and the report rarely names it.
A designer's essay on agency language argues that new jargon keeps replacing the old, and that clients start talking the same way1. It is an opinion piece, not data. But it explains why "scale" ends up in board decks.
Why do returns fall as spend grows?
The usual explanation: the first euros reach the people most likely to buy, and later euros reach people who are less likely to. Marketing-mix modelling has a name for this effect: saturation. The open-source PyMC-Marketing project, for example, lists saturation effects, described as diminishing returns in media investment, alongside adstock, the carry-over effect of advertising over time2.
So an average return can look healthy while the next euro does badly. That next-euro return is marginal ROAS.
Which margin to use for break-even is our view: we prefer contribution margin before marketing, meaning what is left per order after variable costs.
Worked example
Easily confused with
Scale vs Growth
Growth is what happened to sales. Scale is what happened to spend. They can move apart.
Scale vs Marginal ROAS
The return on the next euro, not the average. It is the number that should decide a scale-up.
Scale vs Payback period
The months it takes for the margin a customer generates, not the revenue, to repay what it cost to acquire them. A scale-up that pays back slowly also ties up cash.
Buzzword alert
"The campaign is ready to scale."
Usually means: the panel ROAS looked good for a while.
Ask: what marginal return does it have now, and what does it need to break even?
"We scaled the account."
Usually means: spend went up.
Ask: what happened to profit after the cost of goods, delivery and returns?
"This audience is scalable."
Usually means: it is large.
Ask: large enough to keep the return above break-even, or just large?
FAQ
Is scaling always bad?
No. Spending more can be the right call when the next euro still clears break-even. The problem is scaling without knowing that number.
Does scale mean the same as growth?
No. Scale describes spend or scope. Growth describes results. You can scale spend and see no profitable growth.
Sources
- The welcome death of agency speak (Tobias van Schneider, 2020-07-13)Blog or media
- pymc-labs/pymc-marketing (GitHub README)Primary source
Let’s find what’s actually working.
Next step. Check what your ROAS looks like on explicit assumptions. Use the Is your ROAS real? calculator.