Fixing GA4 Add To Cart for GTM Ecommerce Template #1435
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jethron
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May 29, 2025
Per snowplow/snowplow-javascript-tracker#1435 the handling of `opts` parameter assumes both it and the `ecommerce` object will be checked for each option, but this is not the case in some cases (e.g. `finalCartValue`, `step`, `paymentMethod`). This corrects the interface selection so the parameters are passed correctly.
jethron
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May 29, 2025
Per snowplow/snowplow-javascript-tracker#1435 the handling of `opts` parameter assumes both it and the `ecommerce` object will be checked for each option, but this is not the case in some cases (e.g. `finalCartValue`, `step`, `paymentMethod`). This corrects the interface selection so the parameters are passed correctly.
matus-tomlein
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May 29, 2025
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Thanks for the contribution, @jborlase-snowplow! LGTM, but adding @igneel64 for a second pair of eyes as I don't have much experience with this use case.
Nice! I should really spend some time learning TypeScript. Co-authored-by: Matus Tomlein <matus.tomlein@gmail.com>
Including Matus' feedback Co-authored-by: Matus Tomlein <matus.tomlein@gmail.com>
greg-el
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Jun 23, 2025
Fixing GA4 Add To Cart for GTM Ecommerce Template
jethron
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Jun 23, 2025
Per snowplow/snowplow-javascript-tracker#1435 the handling of `opts` parameter assumes both it and the `ecommerce` object will be checked for each option, but this is not the case in some cases (e.g. `finalCartValue`, `step`, `paymentMethod`). This corrects the interface selection so the parameters are passed correctly.
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greg-el
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Jun 25, 2025
Fixing GA4 Add To Cart for GTM Ecommerce Template
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The current implementation of the trackGA4AddToCart is incompatible with the Snowplow Ecommerce tag template. The tag template combines the opts and ecommerce objects. There is no method to pass multiple parameters through the GTM template. The result is that the add to cart and remove to cart events are always invalid since they require a total_value property that comes from the finalCartValue.
This fix allows the JavaScript tracker to check the ecommerce object for the finalCartValue.