05/20/2026
It is May. And Joel, Head of Partnerships at AMZ Prep, is already talking to brands about Q4.
Most people think that is too early. Those are the same brands calling in a panic in October.
Here is what every Amazon seller needs to understand before it is too late
Amazon now calculates FBA storage capacity on five months of forecasted sales instead of six. The window is shorter than last year. And Amazon brought back ASIN level restock limits on top of that.
You cannot send one large bulk shipment in September and expect to stay in stock through December.
For brands sourcing from Asia ocean freight needed to leave by late April or early May to land in time for Prime Big Deal Days in October. For some brands that window has already passed. Air freight is still an option but at three to five times the cost per unit compared to ocean.
And here is the number that should stop every Amazon seller in their tracks.
A 27 percent average stock-out rate during Q4 costs sellers an estimated $18,000 per SKU in lost sales and ranking decline.
That is not a risk. That is a choice.
The brands winning Q4 are not smarter than everyone else. They just started earlier. They locked in inventory quantities in May. They booked freight in June. They had stock confirmed at their fulfillment center by August. By the time October hits they are running promotions, not chasing containers.
Once inventory arrives at AMZ Prep the team processes and routes it into Amazon fulfillment centers in two to four days. Every day of delay at that stage is a day your listing is not live.
If you want to start building your Q4 inbound plan today, watch this video and reach out to the AMZ Prep team.
Watch the full video : https://youtu.be/pIgha4RB_ZQ
In this video, Joel, Head of Partnerships at AMZ Prep, breaks down why Amazon FBA Q4 planning starts in May, not September. Amazon FBA storage capacity is no...