A larger order can leave less money for advertising. Add overseas shipping, payment conversion, import costs and refunds, and an apparently attractive new market may support a lower acquisition cost than your home market.
Calculate contribution before setting the campaign target. This guide uses a hypothetical comparison to show how. It applies only after you have established that the product may be sold and promoted in the destination. Strong margins do not make an ineligible peptide offer suitable for Meta.
In this guide
Give every market its own cost sheet
Start with the revenue the business actually retains, excluding taxes collected for authorities. Record discounts and decide how customer-paid shipping is treated. Then subtract the variable costs associated with fulfilling and supporting the order.
Use the real route: seller, warehouse, carrier, destination and product classification. A supplier's generic shipping quote may omit expenses that arise after dispatch. Have the relevant tax and customs adviser confirm the treatment instead of assuming that a previous shipment establishes the rule for every order.
Cross-border rules change. For example, the European Commission describes a temporary customs-duty measure for low-value imports beginning on 1 July 2026. That makes an old spreadsheet built around the previous exemption an unsafe starting assumption. Check the current scope and implementation for your route. European Commission guidance on low-value imports.
See why higher revenue can support a lower target
The figures below are hypothetical, expressed in one reporting currency. They are not Adnoxx customer results, country benchmarks, tax rates or recommended prices. The refund allowance represents expected revenue losses and incremental refund-related costs that are not already included elsewhere.
| Per-order item | Market A | Market B |
|---|---|---|
| Revenue excluding tax, after discounts | 100 | 110 |
| Product cost | 25 | 25 |
| Fulfillment and delivery | 6 | 14 |
| Payment processing | 3 | 4 |
| Expected refund-related loss | 4 | 9 |
| Seller-borne import costs | 0 | 7 |
| Currency-conversion cost | 0 | 3 |
| Variable support cost | 2 | 4 |
| Contribution before acquisition | 60 | 44 |
| Desired contribution after acquisition | 15 | 15 |
| Maximum acquisition cost under this model | 45 | 29 |
Market B brings in ten more revenue units but leaves sixteen fewer units before acquisition. If the team gave both campaigns a target cost of 40, Market A would clear the desired contribution while Market B would not. The difference comes from the operating model, not a judgment about the quality of either market.
These maximum acquisition costs do not include every possible fixed expense or working-capital requirement. Decide what contribution must cover in your business. Avoid presenting a first-order calculation as total company profit.
Use settlement currency rather than a convenient conversion
A customer may pay in GBP, CHF, SGD or NZD while the business reports in another currency. Distinguish the displayed price, payment settlement and reporting conversion. Record processor charges and avoid counting the same conversion spread twice.
Reference exchange rates can support consistent comparisons, but they are not necessarily the rates your payments receive. The European Central Bank describes its reference rates as informational rather than transaction rates. Use actual settlement information for realized margins. ECB explanation of exchange rates.
Run a simple sensitivity check before launch. Ask what happens if settlement revenue falls, delivery costs rise or the refund allowance increases. Change one input at a time so the team can see which uncertainty matters most. A fragile target should not be treated as a comfortable scaling limit.
Include the orders that do not stay sold
A placed order is not always retained revenue. Cancellations, failed deliveries, refunds and payment disputes can arrive after the campaign report looks successful. Keep those outcomes connected to the original order group in your commercial analysis.
Use return terms that reflect the applicable rules for the product and destination. The EU's consumer guidance describes withdrawal rights and exceptions; do not assume that putting a blanket no-returns sentence on a shop resolves them. Your Europe: returns and withdrawal.
Estimate an allowance using relevant evidence, then replace estimates with observed outcomes as orders mature. If the market is new and data is limited, show a range instead of a confident single figure. Separate an unobserved outcome from a confirmed zero-refund result.
Allow time for delivery and cash recovery
Two campaigns can generate the same retained contribution while placing different demands on cash. Inventory may be paid for before launch, advertising charges arrive early and payment settlement or customer acceptance may take longer. A budget decision needs that timeline as well as a margin percentage.
Build a short cash calendar for the proposed test. Include inventory payment, advertising spend, expected settlement and refund exposure. Use the actual terms agreed with suppliers, processors and logistics partners. Do not fund expansion using assumed repeat purchases before the business has evidence that those purchases occur.
Review groups of orders after a suitable delivery and returns window, rather than comparing today's unsettled orders with last month's completed ones. The right window depends on the real operation. Mark provisional results clearly in the discussion.
Turn the model into a campaign decision
- Confirm product, market and platform eligibility.
- Establish the order revenue and variable-cost definitions.
- Model the actual fulfillment and currency route.
- Include realistic refund and support allowances.
- Choose the contribution required after acquisition.
- Set a test budget the cash plan can support.
- Revisit the assumptions as delivered-order evidence arrives.
Can reported ROAS choose the best country?
It helps describe attributed revenue relative to the report's cost basis. It does not automatically include your country-specific delivery, tax treatment, refunds or currency costs. Compare commercial contribution alongside the campaign metric.
Should we accept a first-order loss for repeat buyers?
Only model future contribution with appropriate evidence and a clear cash limit. A hoped-for repeat purchase is not a completed order. Keep the base case and the retention assumption separate.
Adnoxx can make campaign performance easier to review across eligible markets. Bring this cost model to that review so budget decisions reflect the business behind the clicks. Explore campaign management. Sources reviewed on 11 October 2026.
