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Absolutely, here’s the crux of it: the GA4 Measurement Protocol is not the same as the UA Measurement Protocol. It only takes POST requests, with the request body formatted in JSON, and requires a Secret and Measurement ID.
It seems like you might be attempting to mirror GA4’s client-side behavior from your backend; unfortunately, that’s not something it supports. To report events from the server-side, you should be using the GA4 MP API, which is JSON-based and needs a secret and measurement id.
For more detailed information, the official Google docs provide some great guidelines on sending events from the server-side through GA4 Measurement Protocol. You can check it out at,Google DevGuides.
