Our own calculation, plotting break-even ROAS against gross margin. The median figure is from a study of 228 dropshipping products.
Before you spend anything, work out your break-even ROAS: divide 1 by your gross margin. At 50% margin you need 2x just to break even. At 25% you need 4x, which almost nothing achieves on cold traffic. Budget roughly 50 conversions' worth of your target cost per order for a real test, kill an ad set at about 1.5 times break-even cost per order after $100 to $150, and scale winners by 20 to 30% a day rather than doubling.
One number decides whether ads can work at all
The useful work happens before you open your ad account, and it takes about thirty seconds.
That is the return you need just to stop losing money. Not to profit. To break even.
Here is what it looks like across the range, with the median row taken from a study of 228 dropshipping products:
| Gross margin | Break-even ROAS | Realistic? |
|---|---|---|
| 20% | 5.00x | Almost never on cold traffic |
| 25% | 4.00x | Very rare |
| 30% | 3.33x | Hard, needs strong creative |
| 40% | 2.50x | Possible, tight |
| 50% | 2.00x | Workable |
| 60% | 1.67x | Comfortable |
| 77% | 1.30x | Median dropshipping product |
| 85% | 1.18x | Lots of room to test |
The same study found products under 30% margin averaged a break-even ROAS of 7.93x. That is not a difficult target. That is a product that cannot be advertised profitably, no matter how good the ads are.
Your break-even ROAS was decided the day you picked the product. The ads just reveal it. The Dropshipping Playbook
This is why chapter 1.3 put "the maths never worked" above every other failure. A bad ad costs you a test budget. A bad margin costs you every test budget you will ever spend.
What you can pay per order
Break-even ROAS tells you whether ads are viable. Cost per acquisition tells you what to bid. It comes from the same numbers.
| Selling price | Max CPA at 3x ROAS | What that buys you |
|---|---|---|
| $25 | $8.33 | Roughly one thousand impressions. One. |
| $40 | $13.33 | Workable with sharp creative |
| $60 | $20.00 | Room to test angles |
| $100 | $33.33 | Room to retarget properly |
| $150 | $50.00 | Can outbid most competitors |
Your entire acquisition budget for a $25 order buys about a thousand impressions. If your product needs more than one thousand people to see it to produce a sale, and it almost certainly does, the maths has already lost.
This is the real reason experienced dropshippers drift upward in price. Not greed. Headroom.
The $2,000 testing myth
Almost every course teaches the same thing: budget two thousand dollars or more for the testing phase before you can expect to find a winner. One merchant put the obvious question to the Shopify Community.
A merchant explained that every Facebook ads course they had taken said the same thing, that testing requires $2,000 or more to find profitable ad sets. They proposed a rule instead: turn the campaign off after $500 of spend with no add-to-carts, rather than spending $2,000 to discover there were no sales.
The reply from a certified Meta ads strategist was blunt. Ad success does not depend on how much you spend. It depends on the audience, the purpose, and the quality of the campaign. They did not believe the $2,000 rule.
Shopify Community, "Turning off a campaign after spending $500 and no add to carts"
The merchant's instinct was right, and their number was still too high. Zero add-to-carts after $500 is not a marginal result you need more data to interpret. It is an answer, and it arrived several hundred dollars earlier.
Kill rules, written down before you start
The point of writing these down in advance is that you will not want to follow them later. Every losing campaign feels like it is one more day from turning around.
Zero add-to-carts
your break-even CPA
No purchases
The third row is the one people get wrong most often. Healthy add-to-carts with no purchases means the ad did its job. Turning it off and blaming the creative is how a store problem gets misdiagnosed as an ad problem for months.
What to budget
Two different questions get confused here: what you spend per day, and what a full test costs.
Fifty conversions is roughly where results stop being noise. That figure is per product, not per store, which is why testing five products at once is a five-figure exercise and not a beginner's plan.
If those numbers are out of reach, that is worth knowing now rather than in week three. It does not mean stop. It means paid traffic is not your first channel, and chapter 2.3 is where you should be.
Where the money leaks
Separate from budget, these are the recurring ways spend disappears without producing information.
- Running ads before walking your own checkout on a phone
- Changing the creative, the audience and the budget in the same 24 hours, so no result can be attributed to anything
- Testing four products at once on a budget sized for one
- Judging a campaign on day two, while it is still in its learning phase
- Scaling a winner by doubling, then losing it and not knowing why
- Optimising for clicks or add-to-carts instead of purchases, then reading the wrong number as success
- Never calculating break-even ROAS, so every result looks equally ambiguous
That last one is the quiet killer. Without a break-even number, a 1.8x ROAS looks like a mediocre result you might improve. With one, you know instantly whether it is a winner to scale or a product to drop.
The one lever that is not in your ad account
You cannot lower CPM. Meta CPMs are up around 89% since 2020 and you are bidding against better funded advertisers than yourself.
What you can change is what a customer is worth when they arrive.
Raising average order value does not change your break-even ROAS, since that is set by margin. It raises the cost per order you can afford, which is the number your ad account actually competes on. A second item in the same order does not pay a second acquisition cost.
A $40 order at 55% margin gives you $22 of gross profit to spend against. Turn that into a $62 order at the same margin and you have $34. Same ads, same CPM, same audience, and suddenly you can outbid the people you were losing to.
That is Level 04.
Common questions
What ROAS should I aim for?
How long should I let a campaign run before judging it?
Can I start with $5 a day?
My ROAS looks fine but I have no money. What's wrong?
One number pays for the rest
What a single order is worth decides what every other fix can afford. Chapter 4.1 is where that number moves.
Go to chapter 4.1