Most sellers review their PPC weekly and their inventory quarterly.
By Michael Erickson Facchin ยท September 27, 2026 ยท Curated by George's Blog
Most sellers review their PPC weekly and their inventory quarterly.
Amazon doesn't respect that schedule.
I joined Sean Stone on Spillover Commerce to talk about something that gets filed as an ops problem and is actually a marketing problem: what your inventory level is quietly doing to your ad performance.
Here's the part that should change how you budget.
๐ ๐ฌ๐ญ๐จ๐๐ค๐จ๐ฎ๐ญ ๐ข๐ฌ ๐ ๐๐ข๐ฅ๐ฅ ๐ฒ๐จ๐ฎ ๐ฉ๐๐ฒ ๐ญ๐ฐ๐ข๐๐.
The first bill is the obvious one - the sales you didn't make while you were out.
The second one is the expensive one. While you were gone, your rank decayed, your share of the Featured Offer went somewhere else, and your conversion history stopped compounding. When the stock finally lands, you're not resuming. You're rebuilding. And you're rebuilding by buying back, at a higher CPC, the position your inventory used to earn you for free.
Nobody puts that number on an inventory report.
๐๐ก๐ ๐ซ๐๐๐ฅ ๐ฉ๐ซ๐จ๐๐ฅ๐๐ฆ ๐ข๐ฌ ๐๐ง ๐จ๐ซ๐ ๐๐ก๐๐ซ๐ญ. In most companies inventory sits with ops and PPC sits with marketing, and the two look at each other's numbers approximately never. So the ad manager keeps bidding hard into a listing with eleven days of cover left, because nobody told them, because it isn't ๐กโ๐๐๐ data.
Amazon does not care how you've divided the work internally.
๐๐ก๐๐ญ ๐ฐ๐ ๐๐๐ญ๐ฎ๐๐ฅ๐ฅ๐ฒ ๐ฐ๐๐ง๐ญ ๐ญ๐ก๐ซ๐จ๐ฎ๐ ๐ก.
I walked through the data on how low stock tracks with falling sales and conversion rate, and then showed a dashboard that flags:
- products at risk of stocking out
- overstocked products tying up capital
- products coming back into stock
- when PPC should be switched back on
A few standard Amazon reports and a Claude prompt. That's the whole build. It is not a tooling problem, which is what makes it slightly embarrassing that so few accounts have it.
Full episode here: https://lnkd.in/eGgq7ebN
Thanks Sean Stone!! This was one of those conversations that gets more obvious the longer you sit with it.
Your ad account is downstream of your supply chain. Budget like it.