Estobi maps every unit of your FBA inventory to its fulfillment center, scores your distribution coverage, calculates your 2-day reach, and alerts you when any ASIN approaches stockout — all from live SP-API data.
Amazon distributes FBA inventory across fulfillment centers automatically, but most sellers have no visibility into where their stock actually sits or whether it is positioned to reach customers within 2 days. Poor distribution means slower delivery promises, lower Buy Box share, and missed sales.
When an ASIN goes out of stock, Amazon doesn’t warn you. By the time you notice, you’ve already lost ranking, Buy Box share, and revenue that won’t come back on its own.
Four automated steps run continuously to keep your inventory picture current and your reorder alerts accurate.
Estobi pulls your FBA inventory directly from the Amazon Selling Partner API on a continuous schedule. Every unit is accounted for across every fulfillment location.
The warehouse intelligence system classifies each fulfillment center code — distinguishing FCs, sort centers, and receive nodes using confirmed ledger data from real shipments. 129+ codes confirmed and growing.
For each ASIN, Estobi calculates a distribution score and 2-day reach score based on proximity to the top 100 US metro areas. Coverage gaps are flagged with specific regions identified.
When any ASIN drops below its calculated safe stock threshold — based on your real sales velocity — a reorder alert fires with the suggested quantity to cover your lead time.
A live dark US map showing every fulfillment center holding your inventory, with coverage circles indicating 2-day delivery reach from each location.
An overall FBA coverage quality score calculated from how well your inventory is spread across US regions relative to your customer demand patterns.
The percentage of the top 100 US cities your inventory can reach within 2 days from its current fulfillment center positions. Higher scores mean stronger Buy Box eligibility.
Specific cities and regions where your inventory positioning leaves customers outside 2-day delivery range — actionable data for inbound shipment routing decisions.
Every ASIN tagged Healthy, Reorder, or Out of Stock based on current unit count and sales velocity. Status updates on every SP-API pull.
Days remaining for each ASIN calculated from your real 30-day sales velocity — precise lead time awareness before a stockout becomes unavoidable.
When any ASIN crosses its safe stock threshold, an alert fires with the suggested reorder quantity calculated from velocity and your configured lead time.
129+ Amazon fulfillment center codes classified by facility type. FC codes are Amazon's own facility identifiers — not seller data. Each seller's inventory and account data remains completely private and is never shared or pooled across accounts.
The FBA Map page surfaces everything in one view: your distribution score, 2-day reach percentage, and a live table of every ASIN with days remaining and reorder status. No spreadsheet hunting, no manual calculations.
Reorder alerts appear at the top of every page in the Estobi Dashboard — not just on the FBA Map page. You cannot miss them.
FBA Map is available to all Estobi users including the free plan. Free plan users see demo data.
FBA Map scoped to managed SKUs on Entrust plans. See full plan details →
Inventory location is one of the least-understood Buy Box factors. Here’s how fulfillment center distribution affects your delivery promise and why it matters for Buy Box share.
Not every warehouse code is a fulfillment center. Sort centers, receive nodes, and cross-dock facilities all appear in your SP-API data — and misreading them leads to bad inventory decisions.
Stockouts cost more than the lost sales. A velocity-based reorder model, calibrated to your lead time, is the difference between consistent growth and recovery cycles.
Connect your Amazon account and see your live FBA distribution, coverage scores, and reorder queue inside the Estobi Dashboard.