I find out that if a GA property MEASUREMENT ID is used in few Google Tag Managers then DebugView of this GA property stops working for all GTM-s. Probably, except the last one where it was configured (not 100% sure).

As you can already see from the question, it’s about the DebugView of Google Analytics 4. When testing (in preview mode of the Tag Manager), the same device is always displayed umpteen times in the DebugView (not always the same number).
The parameter “debug_mode” was initially set to “true” because it is a test store. Now I have removed the parameter. This means that only one device should be displayed in the DebugView, as I am the only one in preview mode (GTM), or not? Because despite removing the parameter “debug_view” I still see so many devices.

I have a reoccurring problem in my GA 4 data – some days most of my traffic (session source / medium) is reported as (not set). For this part of traffic number of session_start events is nonexistent. We are not using measurement protocol or server side. How can I fix it?
Refferer for some of this traffic is google or not reported.

I have a view_item event on my page, and I am wondering if this event will generate a revenue amount. Based on the structure of the data layer, it includes currency and a value, but inside the GA4 report, it doesn’t show the revenue. I double-checked all values inside the data layer object and verified that they are correct in terms of both values and formatting. Additionally, I checked this event using Tag Assistant, and it is triggering.

I have made a new custom event called ‘sales_from_chat’ and marked it as a key event. I am firing this event instead of ‘purchase’ if purchase is being made through chat bot on the website. Following is the gtag code.