Ecommerce steering
Smart bidding targets.
What is ROAS?
ROAS (Return on Ad Spend) measures revenue generated per advertising dollar spent: attributed revenue ÷ media spend. A ROAS of 4 (or 400%) means $4 revenue per $1 ad spend. It is a media KPI; it may omit creatives, salaries, or margin—hence the gap with ROI.
In one sentence
ROAS shows how much revenue your ad spend returns.
Key points
- ROAS = attributed revenue / ad spend.
- Define the attribution window (1-day click, 7-day…).
- A “good” ROAS depends on margin: 3× can be ruinous or excellent.
- Steer with CPA and margin too—not ROAS alone.
Term at a glance
- ROAS
- return on ad spend · ad efficiency · revenue per ad dollar
- English term
- Return on Ad Spend
- Domain
- Digital marketing
- Category
- Advertising metrics
- Level
- Beginner to intermediate
What does ROAS mean?
Google Ads and Meta Ads Manager show ROAS from tracked conversions. Incomplete tracking (iOS, consent) can diverge from reality.
Target ROAS bidding needs a stable conversion history.
For B2B lead gen, teams sometimes assign estimated conversion values as a ROAS proxy.
How do you use ROAS?
- 01
Harden tracking
Conversions, values, CAPI/enhanced conversions.
- 02
Set a threshold ROAS
Based on margin and non-media costs.
- 03
Segment
By campaign, device, audience, product.
- 04
Reallocate
Scale what beats the threshold; cut or rebuild the rest.
A concrete example
An ecommerce shop spends CA$5,000 on Google Ads and attributes CA$22,000 revenue → ROAS = 4.4. With 35% gross margin, the minimum threshold was 3.0; the campaign is scalable.
What is ROAS for?
Campaign comparison
Allocate media budget.
Creative tests
See which angles repay spend.
Media reporting
Simple KPI for marketing leadership.
Pros and cons
- Easy to read
- Native in Ads Manager
- Good for scaling media
- Comparable across campaigns
- Ignores non-ad costs
- Attribution-sensitive
- Can hide margin issues
- Weaker for pure long-cycle B2B
ROAS vs ROI
| ROAS | ROI | |
|---|---|---|
| Costs | Mostly ad spend | All relevant costs |
| Formula | Revenue / ad spend | (Gain − cost) / cost |
| Use | Media steering | Investment decisions |
| P&L rigor | Partial | Closer to finance |
Why ROAS matters for Quebec SMEs
When every ad dollar counts, a ROAS threshold tied to your margin avoids “winning” on a metric that still loses money.
FAQ
Is ROAS 1 the floor?
No: ROAS 1 barely covers ads before margin and other costs.
ROAS or POAS?
Some track profit on ad spend—closer to margin.
Lead gen without revenue?
Assign a realistic lead value or steer on CPA.
Why Ads and GA4 differ?
Different attribution models and windows.
Smart Bidding target?
An overly aggressive target ROAS can choke volume.
Related terms
Sources and references
High ROAS but thin margin? Let’s reset threshold, tracking, and campaign structure.
Steer ROAS