Case studies
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See how East Star approaches Amazon business challenges, connects operations, and uses data to improve performance and profitability.
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+31% contribution margin in 2 quarters.
The situation — as found, onboarding audit
A $14M home-goods brand growing 20% a year and keeping none of it. Reorders were chased after the stockout; air freight rescued revenue and donated the margin; ads were optimized to an ACOS target that treated every SKU as the same customer.
The founders had fired 2 agencies in 18 months. The brief they gave us was 1 sentence: "Tell us where the profit goes."
The system — installed over 90 days
2 systems, 1 drawn interlock.
The result — 2 quarters, reported monthly
Reported with the misses on the chart.
The misses are on the chart. Months 2 and 4 came in under forecast — they're why the Q2 accuracy number means something.
Source: client scorecard · SP-API settlement data · Jan–Jun 2026Forecast versus actual contribution margin over six months. Actual tracked forecast closely, with months two and four coming in under forecast — marked as misses.
- The hero SKU stayed capacity-limited through Q3 — supplier MOQ, not forecast. Margin gains came from the other 41 SKUs.
- 1 price step was reversed after 11 days — elasticity said no. The reversal is in the log, and in this report.
- New launches ran manual all 6 months. No history, no autopilot — the 2 launched SKUs are excluded from the accuracy number.
"First partner that told us what wouldn't work — then proved what would."
COO — the operator in this case
Method — numbers from client scorecards and SP-API settlement data · periods as labeled · exclusions stated above
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The audit is where every one of these started — 14 days, read-only, and the report is yours to keep.