Source/medium not set google analytics


I just started using free and I have problem that with my conversion the source/medium are not set. Any idea on how to fix this?

I have connected google tag by this:

And I send a conversion to analytics by this:

Check first whether all events are always sent through the server container. It is better to do this by also checking the browser network (just specify your measurement id ga4 in the filter). Make sure that every event goes through the server container.
In 90% of cases this problem is due to the fact that some events, in particular conversion events are sent directly to instead of your server container url.

Since GA4 web events and server events use different cookies - such events are considered as events from different users and this breaks many reports in GA4.