ROAS (Return on Ad Spend)
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Definition
ROAS stands for Return on Ad Spend. It’s a core metric used to evaluate how much revenue is generated for every dollar spent on advertising. The formula is simple:
ROAS = Revenue from Ads / Cost of Ads
For example, if a brand spends $10,000 on ads and earns $30,000 in revenue from those ads, the ROAS is 3.0x.
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Purpose
ROAS is a key financial indicator that tells brands whether their paid media is profitable. It helps marketing and finance teams:
— Gauge campaign efficiency
— Set and adjust budget caps
— Prioritize winning channels, creatives, and products
— Align growth targets with margin constraints
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Why It’s Essential for Fashion E-Commerce
In fashion, where margins vary across products and seasons, ROAS must be interpreted with nuance. A 3.0x ROAS might be a win for one brand—or a loss for another—depending on:
— Gross margins
— Shipping & fulfillment costs
— Returns & discount rates
— Build full-funnel strategies from awareness to conversion
— CAC (Customer Acquisition Cost) tolerance
At Veicolo, we help brands define their true breakeven ROAS, then optimize campaigns to exceed it sustainably.
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Core Components
Blended ROAS
Measures total revenue vs. total ad spend across all platforms
Platform ROAS
Metrics reported by Meta, TikTok, Google, etc.—often inflated
MER (Marketing Efficiency Ratio)
A higher-level metric often used for financial planning
LTV-ROAS
Incorporates customer lifetime value, not just the first purchase
Attribution Windows
ROAS shifts depending on 1-day, 7-day, or 28-day tracking
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Veicolo’s Approach
We don’t chase high ROAS numbers. We chase profitable scale.
— We work with clients to set ROAS benchmarks based on their actual margins
— Our testing frameworks track ROAS across creative, audience, and offer variables
— We integrate tools like Northbeam and Triple Whale for more reliable attribution
— Our media buyers and strategists collaborate with finance to set growth caps and pacing models
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Use Cases
Scenario
ROAS Insight
Low ROAS but High AOV
Improve CAC by tightening targeting or adjusting creative
4x ROAS on Meta but Unprofitable
Likely due to high COGS or returns—ROAS isn’t everything
Declining ROAS During Sale
Discounting often compresses margin, skewing perceived success
New Product Test
Use ROAS + CPC to evaluate early signal performance
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