Fill Rate (Receive Fill Rate)

Fill Rate (Receive Fill Rate) is the share of the units an Amazon vendor confirmed on its purchase orders that Amazon’s fulfillment centers actually received, measured at the receiving step that follows the accept and backorder answers given at PO confirmation.

What it is

Receive Fill Rate % is Units Received divided by Quantity Confirmed for the selected time period. Units that arrive in a later period still count once Amazon receives them, so the rate can climb as late freight lands.

Say you confirm 1,000 units in January, Amazon receives 700 of them in January, and another 200 land in February. At the end of February your Receive Fill Rate is 900 divided by 1,000, or 90%, and the missing 100 units are the ones Amazon’s receiving process never logged.

Three entries in this glossary carry “fill rate” in their names, because different Amazon surfaces use the term for different steps:

• Fill Rate - Accepted Rate and Fill Rate - Backordered Rate measure the confirmation step, which is how you answered each PO line before anything shipped.
• Receive Fill Rate measures the receiving step: how much of the quantity you confirmed actually arrived.

That’s why you can accept every unit on a PO and still post a low receive fill rate if the freight comes in short.

Where it lives in Vendor Central

Fill rate appears on the Forecast and Inventory Planning report in Amazon Retail Analytics (ARA) Premium, next to out-of-stock (OOS) data and Vendor Lead Time (VLT). The demand forecast in ARA Basic doesn’t include it. The two confirmation-stage rates sit on a different report, Operational Metrics, where they’re labeled “Accepted confirmation rate” and “Backorder confirmation rate”.

Why it matters to a vendor

A confirmed unit that Amazon never receives is often a unit you’ve already invoiced. When the invoiced quantity is higher than the count Amazon’s receiving process recorded, Amazon pays the lower amount and raises a shortage claim for the difference, taken off the payment on that invoice. Amazon typically opens those claims about five days before the invoice due date.

Amazon also applies chargebacks when a vendor doesn’t fill what it confirmed.

When the rate drops below 100%, compare units received against the ASN and the invoice for the same POs. Any receipt below the ASN quantity is logged as a shortage, and that shortfall is the money at risk. Before you dispute, check your shipment records for the usual causes:

• packing and labeling errors
• a wrong carton assignment
• counting mistakes at fulfillment center goods-in
• transport damage
• missing delivery scans

Related terms

• Shortage Claim: the payment deduction a receiving shortfall produces.
• Fill Rate - Accepted Rate: the share of items you confirmed as Accepted.
• Fill Rate - Backordered Rate: the share of quantity you confirmed as Back Ordered.
• Chargebacks: the compliance deductions an unfilled confirmation can trigger.
• Amazon chargebacks guide: how to reconcile and dispute a deduction.