Store owner
You see sales and ROAS but cannot tell what remains after product cost, payment, delivery, returns and advertising.
Online course · store model · lifetime access
Calculate what each campaign leaves after costs.
Enter price, VAT, order costs and campaign data. The model calculates break-even ROAS, CPA and CPC limits, and the result after marketing.
- 7 modules
- 21 lessons
- 1 saved store model
- 7 XLSX workbooks
- quizzes, exam and certificate
Break-even ROAS2.50
Maximum CPAPLN 68
Result / order+PLN 26
SignalTest scaling
- once
- one payment, no subscription
- immediate
- access after payment
- no account
- lifetime access link
- your pace
- no cohort schedule
01
Who the Academy is for
E-commerce manager
You need a weekly report that joins marketing, offer and finance, with actions assigned to named owners.
Performance / PPC specialist
You need CPA, CPC and ROAS limits derived from store economics, not copied from an advertising dashboard.
02
What you will build
- aA single-order model from net revenue to the result after marketing.
- bYour break-even ROAS and an operating target that leaves the required result before fixed costs.
- cMaximum CPA and CPC for your main product groups.
- dA decision matrix: scale, fix, monitor or stop.
- eA data reliability check across the store, ERP, GA4 and advertising platforms.
- fA weekly report and 30-day plan that can start in a spreadsheet and later move to BI.
03
Programme: 7 modules and 21 lessons
01ROAS Is Not Profit
Move from an advertising metric to a full order result: revenue, product cost, fulfilment and marketing.
- 1.1 Why a high ROAS can still mean a loss
- 1.2 Gross margin, contribution margin and result after marketing
- 1.3 Unit of analysis: order, product or customer
Module output
Single-order profit map02Order Economics
Account for discounts, delivery, payments, marketplace fees, returns and basket mix.
- 2.1 From list price to net revenue
- 2.2 Payment, delivery and marketplace costs
- 2.3 Returns and claims as a reserve
Module output
Order economics card03Campaign Profitability Thresholds
Calculate break-even ROAS, maximum CPA and CPC, plus a buffer for volatility and model error.
- 3.1 Break-even ROAS and maximum CPA
- 3.2 Operating target and safety buffer
- 3.3 From CPA to CPC and conversion rate
Module output
ROAS, CPA and CPC threshold card04Campaign and Product Portfolio
Turn thresholds into scale, fix, monitor and stop decisions across campaigns and products.
- 4.1 Segment by economics, not channel name
- 4.2 Scale, fix, monitor or stop
- 4.3 Marginal cost while scaling
Module output
Campaign and product decision matrix05Can You Trust the Data?
Reconcile transactions, remove duplicates and separate attribution claims from financial truth.
- 5.1 Choose a source of truth
- 5.2 Transaction IDs, duplicates and missing purchases
- 5.3 Attribution is not incrementality
Module output
Data reliability checklist06One Weekly Report
Build a compact profitability view with thresholds, variance, decisions and clear ownership.
- 6.1 The minimum useful metric set
- 6.2 Compare with threshold, plan and prior period
- 6.3 A report that ends with a decision
Module output
Weekly profitability report07A 30-Day Operating Rhythm
Set weekly decisions, monthly threshold calibration and a shared language for marketing and finance.
- 7.1 The first 30 days
- 7.2 Marketing and finance at one table
- 7.3 Monthly calibration and the next 90 days
Module output
30-day operating plan∎Exam and certificate
The final exam is graded on the server. After passing, you can save the certificate as a PDF and download your profitability working plan.
04
Course and working model in one place
Profitability AcademyProgress 43%
03 · Campaign threshold✓ Break-even ROASMaximum CPAMaximum CPC04 · Campaign portfolio
Your modelCPA PLN 54 against a PLN 60 limit
The campaign leaves a PLN 6 buffer per order.
OutputDecision: monitor marginal cost
Certificate of completionFrom ROAS to Profit. E-commerce Profitability AcademyParticipant name7 modules · exam · save as PDF
- The model saves in this browser and recalculates thresholds as you work.
- Every module ends with working material for your own report.
- The purchase package contains seven XLSX workbooks and two PRO calculators.
05
Full demo lesson
Module 1 · ROAS Is Not Profit
Why a high ROAS can still mean a loss
Separate an advertising metric from the financial result and build a complete order calculation.
Exercise: enter the price, VAT, product cost, fulfilment, returns and advertising cost for your best-selling product.
ROAS is the conversion value attributed to advertising divided by ad spend. In e-commerce that value is usually revenue. It does not include the product, payment, fulfilment or returns costs, so two stores with a ROAS of 4.0 can produce very different profits.
Start with the price actually paid. Convert it to net revenue, then subtract costs that change with the order. The remaining contribution funds advertising and the result required before fixed costs. The Academy model uses it to calculate campaign thresholds.
Decision rule: ROAS describes the relationship between conversion value and ad spend. Judge profitability using the result after variable costs and marketing.
Worked example: A gross price of PLN 246 equals PLN 200 net. Product cost is PLN 92, fulfilment PLN 18 and the returns reserve PLN 10. This leaves PLN 80 for advertising and the required result. A CPA of PLN 70 leaves PLN 10, while a CPA of PLN 90 loses PLN 10.
Watch out: Comparing ROAS across categories without comparing contribution margin. A product with a lower ROAS may earn more when its contribution margin is higher.
06
Instructor
Lifetime Academy access
Pay once and return to the model whenever you need it.
Access starts after payment. There is no subscription and no cohort schedule.
- 7 modules and 21 interactive lessons
- Saved store model: break-even ROAS, maximum CPA and CPC, campaign result
- 7 XLSX workbooks and two PRO calculators in the download package
- Quizzes, final exam, certificate and profitability working plan
- Lifetime access through a secure activation link
- Invoice on request
119 EUR VAT INCLUDED
One payment · access after purchase
Stripe processes the payment. After purchase, the page opens the Academy and sends a backup access link by email.
07
Questions before purchase
01Do I need GA4 or Excel skills?+
The browser model does not require GA4 or Excel. You need basic figures from the store, accounts and advertising platforms. To use the seven workbooks, you need Excel, LibreOffice Calc or another application that opens XLSX files.
02Is this a subscription?+
No. You pay once and receive a lifetime access link. Progress and model values save locally in the browser.
03Can I work with several products?+
The browser model starts with one representative product. Use the included XLSX workbooks and campaign by product matrix for multiple product groups.
04Does store data go to the server?+
No. The interactive model stores values in this browser's localStorage. The server stores the purchase and the exam result required for the certificate.