Recently I tried to get all Amazon listings from multiple marketplaces with ReportType: _GET_MERCHANT_LISTINGS_DATA_.
For MarketplaceIds
A1PA6795UKMFR9(DE)A1RKKUPIHCS9HS(ES)A1F83G8C2ARO7P(UK)
the response columns were as the following:
item-name item-description listing-id seller-sku price quantity
open-date image-url item-is-marketplace product-id-type zshop-shipping-fee
item-note item-condition zshop-category1 zshop-browse-path zshop-storefront-
feature asin1 asin2 asin3 will-ship-internationally expedited-shipping
zshop-boldface product-id bid-for-featured-placement add-delete
pending-quantity fulfillment-channel
English and(!) asin1 is available. For marketplace A13V1IB3VIYZZH (FR) Amazon is responding with a different result:
nom-article réf-offre sku-vendeur prix quantité date-offre
type-réf-produit remarque-article état-article livrable-monde
livraison-eclair réf-produit quantité-en-attente Canal de traitement
there is no asinX. Why? Does anyone know how to specify the language for the reports?
Statement from Amazon after opening a case: "[...] I am sorry to inform you that the french active listing report has been set up differently to be more understable for most of the french sellers as most of them have difficulties to understand English language. [...]"
we are experiencing the same problem with Amazons's API.
The _GET_MERCHANT_LISTINGS_DATA_ reports for DE, UK and IT are consistent but FR is completely different.
Also, we are getting some very strange IDs from the french report. Completely different to a standard ASIN (longer). The ID can be used to search the storefront and find the product with its correct ASIN, but doesn't work in seller central.
To request that reports be translated into your default local language, log in to Seller Central and select Settings > Account Info > Feed Processing Report Language > Localized (report will be translated into default local language). After you enable this setting, both the headers and the contents of the reports will be translated. This option is available in all marketplaces except the United States and Canada.
来源：https://stackoverflow.com/questions/17272021/amazon-mws-how-to-specify-the-language-of-get-merchant-listings-data