We use Google Ads API. Below is an example of the body structure. If we
have 5 gclid leading to revenue 100 EUR, we send each gclid with value
100/5 = 20 EUR and external attribution credit 1/5. Assume that the revenue
100 EUR consists of a product with unit price 25 and quantity 4. Should we
send the items data not affected by the external attribution credit ,
i.e. "items": [{ "productId": "A123", "quantity": 4, "unitPrice": 25}] ?
Or should we somehow adjust it so that quantity * unit price corresponds to
the sent conversion value (100/5 = 20 EUR)?
{
"gclid": gclid,
"conversionDateTime": dateString,
...,
"currencyCode": "EUR",
"conversionValue": data.revenue / data.gclidCount,
"cartData": {
"merchantId": data.merchantId,
"feedCountryCode": data.feedCountryCode,
"feedLanguageCode": data.feedLanguageCode,
"localTransactionCost": data.localTransactionCost,
"items": [{ "productId": "A123", "quantity": 4, "unitPrice": 25}]
},
"consent": {...},
"externalAttributionData": {
"externalAttributionCredit": 1 / data.gclidCount,
"externalAttributionModel": "linearGclid"
}
}
On Thursday, August 21, 2025 at 7:44:09 AM UTC+2 Google Ads API and AdWords
API Forum wrote:
> Hi,
>
>
> Thank you for reaching out to the Google Ads API support team.
>
>
> Based on the provided information, I understand that you wanted to
> implement sending cart data. To provide you with the most accurate and
> helpful guidance, could you please clarify whether you are using the Google
> Ads user interface (UI) or the Google Ads API to send this data?
>
>
> In order to assist you further, could you please elaborate more on your
> issue and provide us with the *Google Ads customer ID*
> <https://support.google.com/google-ads/answer/1704344?hl=en#:~:text=to%20Google%20Ads-,Find%20your%20Google%20Ads%20customer%20ID,-Your%20customer%20ID>
>
> and uncropped UI screenshot to understand the issue better.
>
>
> You can send the details via the Reply privately to the author option or
> direct
> private reply to this email.
>
>
> Thanks,
>
> Google Ads API team.
>
> On Wednesday, August 20, 2025 at 5:15:04 AM UTC+5:30 Veronika Miklínová
> wrote:
>
>> For one conversion action we are using external attribution and therefore
>> we adjust sent values by their weights. Now we want to implement sending
>> cart data as well. Should we adjust any of the values for cart data (e.g.
>> quantity, unitPrice) by the weigths or should we send them in full amount?
>> If we send them by full amount, then the sent value for the conversion
>> won't equal to sent quantity * unitPrice. Is it a problem?
>> example:
>> conversion value (original): 100
>> weight: 0.4
>> sent value (weighted conversion value): 40
>> unit price (original): 25
>> quantity (original): 4
>
>
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