The eBay Sell Metadata API allows developers to retrieve policy information about listing items in different eBay marketplaces. Each marketplace has policies that govern how items can be listed in different eBay categories. Policies available through this API define how to list automotive parts compatibility items, how to specify the condition of listed items, which categories support listings with item variations, which negotiated price (best offer) features are available for a specific category, and the categories that require all listings to have item return policies.
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