Amazon Restock Reports
One upload refreshes your FBA stock picture — and finds the ASINs you sell that aren’t in your catalog yet.
Written lesson
The video for this lesson is in production — the written version below covers the full concept.
What it is
Amazon Reports takes the FBA Restock Inventory report — the CSV Seller Central already generates — and turns it into two things: a fresh stock picture for every listing you track, and a discovery pass over the ASINs you sell that are not in your catalog yet.
After processing, every row lands in one of three buckets: matched to an existing listing, matched via UPC (the report ASIN resolved to a barcode your catalog already knows), or New ASINs — products you demonstrably sell that VendorDelta has never seen.
Why it exists
Your replenishment questions live in Amazon’s data — available units, 30-day sales, recommended replenishment quantity — while your buying decisions live in vendor pricing. The report is the bridge: after an upload, the catalog’s Stock, Restock Qty, and Days Supply columns are current, and margins recompute with real sales velocity behind them.
It is also the fastest way to backfill a catalog. If you have been selling for a while, your restock report is a list of every product that matters — uploading it finds the gaps and lets you close them in bulk.
How to use it
- 1
Download the report from Seller Central
The FBA Restock Inventory report, as CSV. Only the ASIN column is strictly required — upload it exactly as Amazon produced it.
- 2
Upload & Process
Amazon Reports → Upload Report → drop the CSV. Processing runs in the background and streams progress live to the page.
- 3
Read the summary
Each upload shows its matched counts and New ASINs, and the item list sums it up: rows, need restock, out of stock. Sort by Replenish Qty, Available, or Sold (30d); filter to Out of stock or Low stock.
- 4
Work the New ASINs tab
Select unmatched items and choose: add as separate products, Add as 1 product (for variations and multipacks — items sharing a barcode are flagged “Likely variations”), or Link to existing.
- 5
Let the catalog update
FBA inventory is replaced with the report’s numbers, replenishment columns refresh, and margins recompute across the catalog.
Common questions
Which Amazon report is this exactly?
The FBA Restock Inventory report from Seller Central, as a CSV (tab-separated .txt works too). Upload it unmodified — header quirks are expected and handled.
How are rows matched to my catalog?
By ASIN first, against the listings you already track. Anything left over is resolved by barcode: VendorDelta looks up each unknown ASIN’s UPC/EAN and checks it against your product barcodes. Those hits carry a “via UPC” chip — worth a quick spot-check.
What happens to my stock numbers?
The upload replaces your FBA inventory snapshot: listings in the report get its Available, Inbound, and Sold figures; listings absent from the report are treated as having no FBA stock. Upload the full report, not a filtered export.
Does it create quotes or POs?
No — the report updates inventory and discovers products. Buying decisions stay in the catalog, where restock urgency now sits next to vendor pricing, and in Quotes and Purchase Orders.
Is there a limit on report size?
Report rows count against a monthly plan quota — 50,000 on Starter, 150,000 on Growth, 500,000 on Scale. One weekly full report fits comfortably in every plan.
See it with your own data.
Upload a vendor file and watch this lesson happen to it. Free 14-day trial, no credit card.