[Ethan]

The error messages you are seeing occur when the code tries to read or utilize a property or method from an undefined object in JavaScript. ‘TypeError: Cannot read properties of undefined (reading ‘id’)’ implies that the object that this ‘id’ property is tied to is undefined. Similarly, ‘o is not a function’ means that the program has attempted to invoke an entity ‘o’ that has not been specified as a function.

This could be caused by several factors – firstly, it could be that you have a typo or error in your code that causes certain objects or functions to be undefined. Secondly, it could be that your Firebase implementation or the upgrade to GoogleAnalytics4 is not properly configured, making the references to these entities invalid.

In order to diagnose and fix the problem, here is what I suggest:

1. Double-check your code for any typos or errors, especially those related to the undefined entities.
2. Review your Firebase setup and GoogleAnalytics4 upgrade process. Make sure the configurations are correct according to the official documentation.
3. Try to isolate the issue. Run various parts of your application separately and find out which specific part is causing these errors to occur. This should help you narrow down your search for the error’s cause.

Also, make sure to fully understand JavaScript Promises and async/await usage for Firebase since this is also a common place where errors occur.

[Ethan]

Unfortunately, there is currently no method available to directly extract Audience data mapping it with ‘user_id’ or ‘user_pseudo_id’ from Google Analytics 4 via API or any standard Google tool. As of now, Google Analytics 4 does not export audience membership data into BigQuery and there isn’t a restful API available to fetch raw audience data from GA4. This is a limitation many users have been facing and it has been a subject of feedback to Google. It’s highly recommended to keep up to date with Google’s own updates and announcements if such a feature becomes available. Evidently, your plan of creating a separate table in BigQuery for this data and manually linking it to your GA4 data seems a good workaround for the time being.

[Ethan]

There could be several reasons why your GTM isn’t properly linking to your new GA4 property. Firstly, you should ensure you’ve selected the correct GA4 configuration tag in your tag configurations within GTM. Double-check whether you’ve copied your GA4 measurement ID exactly as it appears on your GA4 property – any typos or extra spaces could prevent it from working. Also, ensure that the GTM container you’ve used in your GA4 measurement ID is published.

In the GTM interface, you should verify that your GA4 configuration tag is firing correctly on the pages you want it to by using the GTM Preview mode. If your tag is not firing as desired, consider checking your trigger settings. If the issue persists, there’s a chance that the data may be blocked by browser settings or extensions such as ad blockers, which can prevent GTM and GA4 from working correctly.

Disconnecting from GA3 should not necessarily impact GTM’s connection to GA4, as these are separate systems, so it’s advisable to focus more on configurations relating to GA4. Remember that changes in GA4 can take up to 24 hours to appear in the reports. If everything looks correct, patience could be the key. If all else fails, you could try enlisting the help of a digital analytics expert to look into the problem.

[Ethan]

The issue appears to be with how you are passing in event parameters in your ‘purchase’ event. In GA4, the correct parameters for the ‘purchase’ event aren’t ‘event_action’ and ‘event_category’, but ‘transaction_id’, ‘affiliation’, ‘value’, ‘tax’, ‘shipping’, ‘items’, and ‘coupon’. Additionally, the item array arguments should contain ‘item_id’, ‘item_name’, ‘affiliation’, ‘item_brand’, ‘item_category’, ‘item_variant’, ‘item_list_name’, ‘item_list_id’, ‘index’, ‘quantity’, ‘price’, ‘item_coupon_code’, ‘discount’, ‘currency’. Please refer to the GA4 documentation for specifics on sending purchase events. So, you should revise your gtag script accordingly, replace the placeholders with actual values and map your product data properly into the ‘items’ array.