At a glance
The money the Buy Box is quietly costing you. For each ASIN where you are losing the Buy Box, the card multiplies the share of time the Buy Box was not yours by recent units sold and average selling price, then sums across ASINs to a single recoverable-revenue figure. It answers the CFO question “if we reclaimed the Buy Box on everything we are losing it on, how much would we get back this month?” This is an estimate, not a settled number, so treat it as a prioritisation lens rather than an accounting line.
Calculation
Calculated automatically from your Amazon Seller Central data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading.Worked example
A private-label home-fragrance brand selling on Amazon UK, FBA, period 02 Apr 26 to 01 May 26 (30D). All numbers below are illustrative.- The gift set is the hidden problem, not the diffuser. The diffuser shows the biggest pound figure, but the gift set is losing 39% of its Buy Box. That is a structural loss (a persistent competitor or a repricing gap), whereas the diffuser’s 28% gap may be a few stockout hours. Sort by win-rate gap, not just by pound value, to find fixable losses.
- It is gross, so discount it before you celebrate the recovery. At a 15% referral fee plus roughly £3 per-unit FBA fulfilment, the £26k of gross recoverable revenue is closer to £18k of recoverable contribution, and only a fraction of buyers would have chosen you anyway. Treat the figure as an upper bound on the prize.
- A win rate of 95% can still be worth chasing. The room spray loses only 5% of the Buy Box, but on 1,000 units that is still £700. On very high velocity ASINs, the last few points of win rate matter.
- Stock, not price, may be the lever. Before repricing the gift set down, check whether the lost share lines up with low-stock days. Reclaiming the Buy Box by replenishing protects margin; reclaiming it by cutting price erodes it.
- The alert fired. Estimated recoverable revenue of ~£26k is far above the
>$1k/monththreshold, so Vortex IQ Nerve Centre flags this. The action is to triage the top three ASINs by win-rate gap.
Sibling cards merchants should reference together
This number is a prioritisation lens. Pair it with these to act on it:Reconciling against Amazon Seller Central
Where to look in Amazon Seller Central: Amazon does not publish a “revenue lost to Buy Box loss” figure, this is a Vortex IQ composite. The closest native inputs are:Seller Central → Reports → Business Reports → Detail Page Sales and Traffic by Child Item. The Buy Box Percentage column per ASIN is the win-rate input; Units Ordered and Ordered Product Sales give the velocity and ASP inputs.To approximate the card by hand, take an ASIN’s Buy Box Percentage, compute the implied full-win units, and multiply the shortfall by that ASIN’s average price. Summing across ASINs reproduces the card’s logic. Timing, settlement, and reporting-lag table:
Why our number may legitimately differ from a manual estimate:
Cross-connector reconciliation against other connectors the same seller may run:
Known limitations / merchant FAQs
Is this a real number I can put in a forecast? No. It is a modelled upper bound on recoverable revenue, useful for prioritising which ASINs to fix first, not for forecasting. Discount it for fees and for the share of buyers who would have bought a competitor anyway. Why did this spike when nothing changed on my listings? The most common cause is a stockout. Time out of stock counts as Buy Box loss, so the card attributes the missed sales to “Buy Box loss” even though the real cause is inventory. Cross-check with ASINs Stocking Out <7 Days and Days of Cover (avg). Is the loss a competitor or a hijacker? Check ASINs with Third-Party Offers. If another seller is offering on your private-label ASIN, the Buy Box loss is a hijack and the fix is enforcement, not repricing. If it is a legitimate reseller competition, repricing or fulfilment improvements may be the answer. Should I just drop my price to win the Buy Box back? Not reflexively. The card is gross of fees, so a price cut to recover £1 of revenue may recover only pennies of contribution. Reclaiming the Buy Box through better stock availability, faster (Prime-eligible) fulfilment, or improved seller metrics protects margin better than price cutting. Can I change the alert threshold? Yes. The>$1k/month default is configurable per profile in the Alert Rules tab. Set it to a level where the recoverable prize is worth a person’s time to chase.