Before we look into this further, we'll need a way to establish how this data is being sent to Google Analytics via Google Tag Manager. As the gtag() calls do not use the current Nosto's UGC Google Analytics plugin Tracking ID or data, we'll need to include this in the Direct Uploader Javascript or the parent page with the tracking ID or Google Tag ID / Measurement ID. In the example below we are including firstname, lastname, and email as custom parameters for the event
Please change the X-XXXXX in the code above to Tracking Id for Universal Analytics or Google Tag Id / Measurement ID for Google Analytics 4. You can find more details here.