Regional Coverage

Where demand ships to vs where inventory sits. Demand geography from Amazon Fulfilled Shipments (Haul); inventory geography from the monthly storage-fee proxy — not the Inventory Ledger, which is blocked on SP-API credentials.

Inventory side is a proxy (D2): avg quantity on hand per ASIN × FC × fee month from the FBA storage-fee report — monthly grain, ~1 month lag, fee month 2026-02 absent upstream. Every coverage number on this page is therefore grade-capped at B. The real Inventory Ledger (daily) is blocked on absent SP-API credentials (W3-BLOCKED.md B1) and swaps in without UI change once provisioned.

In-region fulfillment

87.4%

units shipped from an FC in the destination's census region · trailing 90d (2026-04-04 → 2026-07-02) · grade B (proxy-independent, but FC regions are maintainable data)

Cross-country fulfillment

12.6%

units shipped from a known FC region to a DIFFERENT known region — the placement-pain metric · trailing 90d

Demand-weighted coverage

78.6%

Σ min(demand share, inventory share) across regions, unit-weighted over SKUs with proxy inventory (fee month 2026-05-01) · grade ≤ B

Unmapped share

3.1%

of shipped units left an FC not mapped to a region (98 of 462 FCs UNKNOWN) · dest-state unknown: 0.3% · edit the map in Admin → FC regions

S7 ship-distance validation verdict: DOES NOT PREDICT. rho=0.0931 (p=8.43e-27, n=14297 ASIN-months, 722 usable ASINs of 1579 shipped), top-vs-bottom distance-quartile Δlog-velocity=0.0936 (within-ASIN z-scored unit-weighted mean ship distance (state centroids) in month m vs log(units[m+1]/units[m]); Spearman + top-vs-bottom quartile contrast; thresholds fixed a priori: rho ≤ -0.05, p < 0.01, contrast < 0; min 30 units per ASIN-month; computed 2026-07-03; analysis committed at docs/artifacts/w3-s7-ship-distance.json). Per the spec, NO soft-stockout dollar-costing is shown anywhere while this verdict stands.

Region flow heatmap

Share of trailing-90d shipped units by FC region (rows) → destination region (columns). The diagonal is in-region fulfillment; everything off-diagonal travelled across regions.

FC region ↓ / ships to →	Northeast	Midwest	South	West	Unknown
Northeast	15.6%	0.3%	1.1%	0.2%	0.0%
Midwest	2.0%	15.5%	1.9%

Per-SKU coverage

Demand share (ship-to) vs inventory share (storage-fee proxy, fee month 2026-05-01) per region. Coverage = Σ min(demand, inventory) over the four regions; UNKNOWN mass lowers it honestly.

ASIN	Units 90d	Coverage (≤ B)	Cross-region	Northeastdemand / inv	Midwestdemand / inv	Southdemand / inv	Westdemand / inv	Unknowndemand / inv
B001AWH57I	1