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An enum that describes the different ways, or the basis, by which the bid percentage value is calculated.

Note: Currently, ITEM and TRENDING are the only valid bases.

Type that uses Basis


Call that uses Basis



This enum value indicates the recommended ad rate for a promoted item based on its features and attributes.

The recommendation is calculated based on a variety of factors such as item attributes, seasonality, and past performance. This helps sellers determine which items they should promote in their listing campaigns, when to promote those items, and the ad rate that should be set for those items.
This enum value indicates the average ad rate, as set by other sellers, for similar promoted items.

Setting the bidPercentage of your ad campaign to this rate will help the items you list be competitive with other items in the marketplace by improving the chances that your listings in the ad campaign will be displayed more often in the marketplace.