When you create an FBA shipment or draft, Amazon immediately updates your FBA Stock to include those inbound units. However, your Local Stock hasn’t been lowered yet, which would lead to those units being counted twice. The Reserved Stock column prevents this by temporarily subtracting undeducted shipment quantities from your sellable inventory.
'Products' Page - Key Stock Columns
Inbound
Units on Purchase Orders (POs) yet to arrive.Local Stock
On‑hand warehouse inventory before any FBA deductions.Reserved Stock
Quantity allocated to FBA drafts or shipments that haven’t been deducted.FBA Stock
Total units in FBA/WFS (fulfillment centers), excluding those on undeducted shipments.Total Stock
= Inbound + Local Stock + FBA Stock – Reserved Stock
How to Remove a Shipment from Reserved Stock
Use the “Deduct” Feature Without Actual Deduction
Inside a shipment, choose Deduct → select None.
This clears the reservation without touching Local Stock.
Adjust a Single Item in a Shipment
If you need to exclude one item from a shipment:
Open the shipment and use Manual Deduction to set that item’s quantity to 0.
This deducts all other items but leaves Local Stock and FBA Stock unchanged for the excluded SKU—temporarily creating a duplicate quantity.
To fix that:
Go to Shipments > List, find the draft in question, and click Details.
Locate the excluded item and click Mark as Resolved.
The item is removed from the outbound reservation, so it appears only in Local Stock and avoids duplication.