FBA Compliance & Performance Tracking

Amazon Loses Your Inventory. Do You Notice?

Here is a number that surprises most sellers: 1-3% of units shipped to FBA arrive short. Amazon receives 97 when you sent 100. Sometimes 94. Occasionally 88. On a single shipment, the loss is small. Across a year of inbound shipments, it adds up to thousands of dollars in missing inventory.

I have talked to sellers moving $2M through FBA who had no idea they were leaving $20,000-$40,000 on the table annually. They assumed Amazon's counts were right. They were not.

The second problem is subtler. Not all fulfillment centers perform the same. One FC checks in your shipment in 3 days. Another takes 19. If you plan replenishment with a single FBA lead time, you are wrong at every warehouse.

ReplenishRadar tracks both of these problems. Discrepancies get flagged, evidence gets assembled, and fulfillment center performance gets measured per lane. This page covers how.

Discrepancy Tracking and Evidence Packs

Every inbound shipment you send to FBA gets monitored. When Amazon's received quantity does not match your shipped quantity, we flag the difference.

Not a summary. Not a monthly rollup. Each shipment, each ASIN, with the exact shortage or overage.

Shipment	ASIN	Shipped	Received	Shortage	Est. Value
FBA18X9K2	B0C4R7...	500	487	13	$259.87
FBA18X9K2	B0D3F1...	200	200	0	$0
FBA19A2M7	B0C4R7...	300	271	29	$579.71

That third row is worth investigating. A 9.6% shortage on a single shipment is not a rounding error. It is either a systemic receiving issue at that FC or a problem with your prep and labeling.

When you decide to file a claim, ReplenishRadar generates an evidence pack: shipment ID, tracking info, quantity shipped vs. received, per-unit cost, and total value. Click "File Claim" and we open Seller Central to the correct support page with all the context you need. You paste the details, submit, and track the Claim ID back in ReplenishRadar.

We do not auto-file. Amazon's policies change, and automated filing tools have gotten sellers in trouble. You make the call. We make sure you have the data.

Fulfillment Center Performance

This is the feature I wish existed five years ago. ReplenishRadar tracks receiving performance at the individual FC level, not just "how long does FBA take" as a single number.

For every shipment, we record three phases:

• Transit time from shipment creation to delivery at the FC
• Check-in time from delivery to Amazon acknowledging receipt
• Receiving time from check-in to units available for sale

Over time, you build a performance profile for each fulfillment center you ship to. Here is what that looks like after a few months of data:

Fulfillment Center	Shipments	P50 Receiving	P90 Receiving	Status
PHX7	34	4 days	7 days	Healthy
SBD2	28	6 days	11 days	Healthy
MDW6	19	11 days	22 days	Slow
FTW4	12	8 days	31 days	Volatile

MDW6 is consistently slow. FTW4 is worse, because it is unpredictable. Some shipments arrive in 5 days, others take a month. That volatility is what kills your planning.

When we detect a slow or volatile lane, ReplenishRadar flags it and adjusts buffer recommendations. You ship to FTW4, you need more safety stock covering that lane. You ship to PHX7, you can run leaner. One lead time for all of FBA is a fiction.

Inventory Health and Age Reports

On Growth plans and above, ReplenishRadar syncs two Amazon reports every 2 hours:

FBA Inventory Health pulls storage fees, estimated sell-through rates, and Amazon's low-inventory-level warnings. If Amazon thinks you are running too lean on a fast-moving ASIN, that shows up here before the low-inventory-level fee hits.

FBA Inventory Age breaks your FBA stock into age buckets: 0-90 days, 91-180, 181-270, 271-365, and 365+. Each bucket shows unit counts with a 7-day delta so you can see which direction things are heading. If your 181-270 bucket is growing, the aged inventory surcharge is coming and you have time to act.

The 7-day delta is the part most sellers miss. A snapshot tells you where you are. The delta tells you where you are going.

Amazon RIL vs. Your Actual Plan

Amazon publishes a Recommended Inventory Level (RIL) for each ASIN. ReplenishRadar pulls this number and compares it against our own replenishment suggestion.

Most of the time, they are close. When they diverge, you want to know why.

If ReplenishRadar suggests more than 30% below Amazon's minimum RIL for an ASIN, we flag a mismatch warning. This matters because falling below Amazon's recommended level can trigger the low-inventory-level fee, a per-unit charge on every sale until your stock recovers. The fee is small per unit but adds up fast on high-velocity items.

The warning does not mean you must match Amazon's number. Sometimes Amazon's RIL is inflated. But you should make the decision with both data points in front of you, not find out when the fee shows up on your statement.

Reimbursement Tracking

Every discrepancy that goes unresolved is money you gave Amazon for free. We built reimbursement tracking to make sure nothing falls through the cracks.

The workflow is straightforward. Discrepancies get logged as they happen. You review the evidence, decide which are worth filing, and submit through Seller Central with the evidence pack we generated. Once you have a Claim ID, you log it in ReplenishRadar and track the outcome. Approved, denied, partial, pending. All in one place.

I have seen sellers recover $8,000-$12,000 annually just by filing claims they previously ignored. The effort is maybe 30 minutes a month once you have the evidence organized.

Pricing

Feature	Standard ($99/mo)	Growth ($199/mo)	Scale ($499/mo)
Discrepancy tracking	Yes	Yes	Yes
Evidence packs	Yes	Yes	Yes
File Claim workflow	Yes	Yes	Yes
Claim ID tracking	Yes	Yes	Yes
FBA Health reports	--	Yes (2h sync)	Yes (2h sync)
FBA Age reports	--	Yes (2h sync)	Yes (2h sync)
Per-FC performance	--	Yes	Yes
P50/P90 metrics	--	Yes	Yes
Lane health flags	--	Yes	Yes
Amazon RIL comparison	--	Yes	Yes
Owner Pulse AI digest	--	--	Yes

Most Amazon sellers doing over $500K/year get their money back on Growth within the first quarter, just from reimbursement claims they were not filing before.

Start a free 14-day trial and connect your Amazon account. Discrepancy tracking starts working on your next inbound shipment.

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Related:

• FBA Performance Tracking - Per-FC receiving analytics in detail
• Reimbursement Tracking - Full reimbursement workflow
• FBA Inbound Tracking - Shipment lifecycle monitoring
• Amazon FBA Inventory Tools - Transfers, restocking, and inbound plans
• Amazon Low-Inventory-Level Fee Guide - How the fee works and how to avoid it