Overview

Amazon's Capacity Manager is a tool that allows FBA sellers to request increases to their storage capacity limits when they anticipate higher demand for their products. By bidding a reservation fee that can be offset through sales-based performance credits, sellers can secure extra fulfillment center space for upcoming periods without any upfront payment.

Key Points / What Sellers Need to Know

• Requests are for future periods only — Capacity increase requests cannot be submitted for the current storage period. You can only request additional capacity for upcoming periods where Amazon has announced a confirmed or estimated limit.

• No upfront payment required — While you must specify a maximum reservation fee you're willing to pay, Amazon does not charge anything upfront. The fee is only assessed after the period concludes.

• Performance credits offset your fees — You earn $0.15 in performance credits for every dollar of sales generated using the additional capacity. Amazon designed this credit structure so that sellers who use the extra space productively can offset 100% of the reservation fee.

• Lowest granted fee applies to all — Among all sellers whose requests are approved in the same weekly review cycle, the lowest granted reservation fee becomes the rate everyone pays, even if you originally bid higher.

• Requests are granted objectively — Amazon evaluates requests purely based on the reservation fee amount, starting from the highest bid and working down until available capacity is allocated.

How the Request Process Works

To request additional capacity, sellers navigate to the Capacity Manager page within Seller Central. From there, you can create a request for any future period where Amazon has published a confirmed or estimated storage limit. Each request requires two pieces of information: the amount of additional capacity you need for a specific storage type and period, and the maximum reservation fee you're willing to pay for that space. The maximum amount you can request will vary depending on available capacity across Amazon's fulfillment network at that time. Once submitted, Amazon reviews requests on a regular cycle, typically every three to four days, and grants them as fulfillment center space becomes available.