Build the expiry calendar from account evidence
Record the mission activation, displayed end date, affected country shops and the later rate for each SKU. Eligible EU5 and other-eight countries have different duration and rate combinations, while the actual benefit still depends on seller and order eligibility.
Products in eligible categories may move to 7%; other items may use 9%. Keep creator agreements, campaign dates and replenishment arrivals against the same calendar, because an offer negotiated during the launch period may continue after it.
Illustrative margin shock on a €60 order
Assume a French €60 gross sale at 20% VAT, 10% creator commission on every order and €30 of other direct costs including ads. At 4% platform commission, contribution is €11.60. At 9%, it is €8.60, a €3 decline per order.
For an illustrative 500 orders after expiry, the unchanged offer contributes €1,500 less than it would at 4%. This is a comparison at fixed volume, not a forecast that sales remain unchanged after a price or advertising adjustment.
| Measure | At 4% | At 9% |
|---|---|---|
| Platform fee per order | €2.40 | €5.40 |
| Contribution per order | €11.60 | €8.60 |
| Contribution / €60 gross sales | 19.33% | 14.33% |
| Contribution for 500 identical orders | €5,800 | €4,300 |
Compare three responses without hiding their consequences
To recover the €3 decline through fixed cost reduction, remove €3 of actual cost. To recover it only through a higher gross price, account for VAT and price-linked fees: with 20% VAT, 9% platform and 10% affiliate rates, the extra price is €3 / (1 / 1.20 − 0.09 − 0.10) = about €4.6632. Round upward to €4.67 before checking the final price.
Reducing the creator rate by five percentage points on a €60 eligible base also saves €3, but the effect on collaboration performance is unknown. Reducing ad spend by €3 per order is a budget change, not proof that the same sales volume remains available.
Required gross price increase = contribution gap / [1 / (1 + VAT) − platform rate − affiliate rate × eligible revenue share]Apply the plan to inventory still unsold at expiry
Value the unsold units under regular fees and the price you can credibly charge then. If the resulting contribution misses the objective, decide whether to reduce the reorder, renegotiate costs or run a limited clearance. Do not assume the launch fee continues until the stock sells.
Keep the existing launch case for comparison, but make the post-expiry case the operating default once the period changes. Preserve historical rates in reconciliation so old orders are not recalculated at today's percentage.
- Calculate the fee gap by SKU and country.
- Forecast the orders that fall after the displayed expiry.
- Test price, fixed-cost, creator and ad responses separately.
- Check inventory and commercial commitments against the chosen response.
- Verify the first relevant settled orders after the transition.
How much contribution should be protected during a transition?
The right reserve depends on the uncertainty in demand and costs. A response that restores unit contribution on paper can reduce volume or increase returns. Keep the changed offer as a testable assumption and compare mature cohorts.
Where several inputs must improve simultaneously to preserve the margin, reconsider the product's cost structure. A fee expiry can reveal that the launch case was supporting expenses the regular business cannot sustain.