Web pixel event product_added_to_cart is sending different data

Web Pixels
1

Hi all

We have implemented web pixels on different websites and we noticed that the event product_added_to_cart on some stores sends different data. In some stores, it is missing some values inside the data object. Let me share some examples:

example 1:

{
    "id": "sh-XXXXXbc1-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
    "name": "product_added_to_cart",
    "data": {
        "cartLine": {
            "cost": {
                "totalAmount": {
                    "amount": 29.99,
                    "currencyCode": "GBP"
                }
            },
            "merchandise": {
                "id": "XXXXXXXXXXXXX",
                "image": {
                    "src": "//example.com/path/to/image.jpg?v=1694167266"
                },
                "price": {
                    "amount": 29.99,
                    "currencyCode": "GBP"
                },
                "product": {
                    "title": "Product Title",
                    "vendor": "Vendor Name",
                    "id": "XXXXXXXXXXXXX",
                    "untranslatedTitle": "Product Title",
                    "url": "/products/product-url",
                    "type": ""
                },
                "sku": "SKU-XXXX-XXXX-XXXX",
                "title": "Product Variation",
                "untranslatedTitle": "Product Variation"
            },
            "quantity": 1
        }
    }
}

This example the product URL is missing the query “variant” and I can confirm this product has a variant.

Example 2:

{
    "id": "sh-XXXXXb9-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
    "name": "product_added_to_cart",
    "data": {
        "cartLine": {
            "cost": {
                "totalAmount": {
                    "amount": 245,
                    "currencyCode": "GBP"
                }
            },
            "merchandise": {
                "id": "XXXXXXXXXXXXX",
                "image": {},
                "price": {
                    "amount": 245,
                    "currencyCode": "GBP"
                },
                "product": {
                    "id": "XXXXXXXXXXXXX",
                    "title": "Product Title",
                    "vendor": "Vendor Name"
                },
                "sku": "SKU-XXXX-XXXX-XXX",
                "title": "Size / Variant"
            },
            "quantity": 1
        }
    }
}

This second example, as you can see is missing more attributes, but for me, the most important ones that are missing are: the image src URL and the product URL.

Does anyone know why is this happening?

Thanks in advance!