Overview

Amazon has upgraded its marketplace APIs so sellers can now programmatically set Business‑to‑Business (B2B) prices through the Listings Items API (v2021‑08‑01) and the JSON LISTINGS FEED. The change also adds an audience attribute to the Product Type Definitions API (v2020‑09‑01), allowing offers to be flagged for Amazon Business or other specialized programs. Sellers serving corporate buyers need to adopt the new fields to keep pricing accurate and capture higher‑margin B2B sales.

Key Points

• API version upgrade — The 2021‑08‑01 version of the Listings Items API now recognizes a businessPrice object, letting developers push business‑only pricing alongside regular retail prices.
• Feed support — The JSON LISTINGS FEED accepts the same businessPrice structure, so bulk uploads can include B2B rates for thousands of SKUs in a single file.
• Audience flag — The Product Type Definitions API (v2020‑09‑01) returns an audience array (e.g., ["BUSINESS"]) that sellers attach to an offer to indicate eligibility for Amazon Business or other programs.
• Eligibility rule — Only sellers who have enrolled in Amazon Business can use the new fields; accounts without enrollment will have the attributes ignored silently, without error messages.
• Sandbox testing — Amazon advises testing the new pricing fields in the sandbox environment first, to verify that the business price appears correctly for Business shoppers while the retail price remains unchanged for regular customers.
• Minimum order option — The businessPrice object can include a minimumOrderQuantity element, enabling sellers to require a larger purchase size for corporate buyers (for example, a minimum of 10 units).

How Listings Items API & JSON LISTINGS FEED Support B2B Pricing

1. Fetch product type definition — Call the Product Type Definitions API with the target marketplace and product type. The response now contains an property such as , confirming that the product can be flagged for Business pricing.