Contains additional information about cart data.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/services/conversion_upload_service.proto)

| Fields ||
|---|---|
| ## `feed_country_code` | `string` The country code associated with the feed where the items are uploaded. |
| ## `feed_language_code` | `string` The language code associated with the feed where the items are uploaded. |
| ## `items[]` | `https://developers.google.com/google-ads/api/reference/rpc/v25/CartData.Item` Data of the items purchased. |
| ## `local_transaction_cost` | `double` Sum of all transaction level discounts, such as free shipping and coupon discounts for the whole cart. The currency code is the same as that in the `ClickConversion` message. |
| ## `merchant_id` | `int64` The Merchant Center ID where the items are uploaded. |