Hi,
I've been uploading offline conversion successfully for some time and
wanted to extend the functionality by cart data. Everything seems ok and Im
able to upload conversions and see basic conversion in UI, but *no cart
data is showing.*
*[image: Snímek obrazovky 2025-08-04 v 14.39.25.png]*
- im using rest api
- double checked merchantID and productIDs
- switched from camelcase to snake case to rigidly match documentation
(probably not neccesary)
This is how my code looks like:
[
{
"gclid":
"CjwKCAjw7rbEBhB5EiwA1V49nfWNSkuA0aTtlk6symHWSJrGZ7PPCXggStqe5TWwVmo8hQdecKBM-hoCU7QQAvD_BwE",
"orderId": "2025000004",
"currencyCode": "CZK",
"conversionDateTime": "2025-08-03 12:04:51+00:00",
"conversionAction": "customers/9842579591/conversionActions/7231566872",
"conversionValue": 830,
"consent": {
"ad_user_data": "GRANTED",
"ad_personalization": "GRANTED"
},
"cart_data": {
"merchant_id": "5627110943",
"feed_country_code": "CZ",
"feed_language_code": "cs",
"local_transaction_cost": 0,
"items": [
{
"product_id": "64",
"quantity": 1,
"unit_price": 310
},
{
"product_id": "0011",
"quantity": 2,
"unit_price": 350
}
]
}
}
]
I found someone having similar problem here, but no solution:
https://groups.google.com/g/adwords-api/c/GULrHLlSVSs/m/c5x8oUioCwAJ
And Google Advisor mentioning it might be available to allowlisted accounts
only here:
https://groups.google.com/g/adwords-api/c/eDJXWK-4Dkw/m/ACERJsbGAwAJ
Does anyone know how to make cart data working or do you spot any mistake I
am doing?
Thanks in advance.
Tom
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