AI-generated Key Takeaways
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          Key transaction item attributes include item_id,country_code,language_code,quantity, andmerchant_id.
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          item_idandmerchant_idare required attributes for transaction items.
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          country_codeandlanguage_codehelp differentiate product information when items are associated with multiple countries or languages.
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          quantityindicates the number of items sold and defaults to 1 if not specified.
Item attributes of the transaction.
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 A unique identifier of a product. It must be the exact same Merchant Center Item ID you use in your Google Merchant Center for this product. Required. | 
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 Common Locale Data Repository (CLDR) territory code of the country associated with the feed where your items are uploaded. See https://developers.google.com/google-ads/api/reference/data/codes-formats#country-codes for more information. This information is useful to differentiate product information in cases where a product (identified by item_id) is associated with multiple countries. | 
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 ISO 639-1 code of the language associated with the feed where your items are uploaded. This information is useful to differentiate product information in cases where a product (identified by item_id) is associated with multiple languages. | 
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 The number of items sold. Defaults to 1 if not set. | 
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 ID of the Merchant Center Account. Required. |