A 10% discount can move 30% more units — and still lose money. DataGlass models every voucher, bundle, add-on deal, and campaign-day price against contribution margin, so you ship promotions that grow profit.
What sellers see
A voucher campaign runs, GMV jumps, and the marketing channel feels alive. Then end-of-month margin is down. The lift came from products that were already low-margin.
- Discounts that lifted GMV but cost more in margin than they earned in ads saved
- Bundle deals that move volume on the cheapest item only
- Campaign-day pricing decided in a hurry, with no margin model
- Vouchers stacking with platform-funded discounts in unexpected ways
What DataGlass detects
Every promotion is reconciled against per-SKU margin so you can see real impact, not just GMV uplift.
- Vouchers that destroyed margin per redemption
- Bundles whose attach SKU is dragging margin below break-even
- Add-on deals where the discount could be smaller without losing the customer
- Campaign-day price points where current margin sits below break-even
Recommended actions
Decisions you make BEFORE publishing the next promotion — not after the GMV has already shipped.
Project bundle deal margin
See the contribution margin of each bundle composition before publishing — including the attach SKU mix.
Tune voucher thresholds
Find the minimum discount that lifts conversion without destroying margin, per SKU.
Plan campaign-day prices
Set 11.11, 12.12, Pay Day, or live-event pricing on margin headroom, not platform suggestions.
Stop margin-safe promotions from going wrong
Catch voucher / platform-discount stacking before it pushes a SKU below break-even.
Frequently asked questions
Can DataGlass model Shopee vouchers and Lazada flash sales?
Yes. Every voucher and flash sale is reconciled against per-SKU contribution margin so you see whether it lifted profit, just lifted GMV, or destroyed margin.
Does DataGlass help with bundle deals?
Yes. The bundle-margin projector models contribution margin of each bundle composition before you publish, including the attach-SKU mix and the platform fee impact.
Can DataGlass auto-discount or auto-publish promotions?
Not yet. DataGlass surfaces the recommended promotion structure and you publish via the platform native flow. Auto-publish is on the roadmap.
Related concepts
- Contribution margin Revenue minus every variable cost of selling one more unit — the profit each sale actually contributes after fees, ads, and fulfillment.
- True ROAS Advertising return after platform fees, COGS, vouchers, and fulfillment — the profit-aware number platform dashboards rarely show.
- Marketplace fees The platform’s cut on every order — commission, transaction, and seller-funded promotions. The largest hidden line item for most sellers.
