Amazon Fulfillment Web Service (FWS) Pricing
There is no charge to use Amazon FWS.
Once you have integrated Amazon FWS with Fulfillment by Amazon (FBA), you are only charged FBA fees, and only when orders are processed or while inventory is stored in Amazon warehouses (learn more about FBA pricing).
Amazon FWS is offered by Amazon Web Services, Inc.
Fulfillment by Amazon is sold by Amazon Services, Inc.
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