Amazon Product Advertising API Developer's Manual page 264

Product Advertising API Developer Guide
The only valid values for MerchantId are Amazon, to get the Amazon offer for an item if it exists, and All,
which is the default value. For reasons of reverse compatibility, the Offers response group ignores a
MerchantID value of Featured or Featured Buy Box Winner and returns the default value.
The following table shows the expected behavior of the Offers response group for various input parameters:
Optional Input Parameters
Condition
(Default)
(Default)
(Default)
Used, New,
Refurbished, or
Collectible
Used, New,
Refurbished, or
Collectible
Used, New,
Refurbished, or
Collectible
All
All
(Default)
This response group is not returned for Amazon Kindle digital books. An Amazon Kindle ASIN can be
verified through the Binding , Format , and ProductTypeName response elements.
Relevant Operations
Operations that can use this response group include:
• ItemLookup (p. 189)
• ItemSearch (p. 196)
• SimilarityLookup (p. 206)
Response Elements
The following table describes the elements returned by Offers.
• Amount (p. 297)
• Availability (p. 297)
• Condition (p. 299)
• CurrencyCode (p. 300)
• FormattedPrice (p. 302)
• IsEligibleForSuperSaverShipping (p. 303)
Offers Response Group
MerchantId
(Default)
Amazon
Any other value
(Default) or All
Amazon
Any other value
(Default)
Amazon
Any other value
API Version 2011-08-01
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Offer(s) Data Returned by the API
Buy Box Winner if it exists [OR] Lowest priced new
offer.
Amazon offer
Error: invalid value
Lowest priced offer for given condition
Amazon offer
Error: invalid value
Lowest priced offer for each condition
Amazon offer
Error: invalid value