Custom Variable Template for Google Tag Manager
Reads GA4 _ga_xxxxxx cookie and extracts data
Pick a method to determine a cookie name for the right session either by entering the cookie name or just the measurement id for a data stream.
Chose what value to return:
- Last event timestamp: GA4 updates a timestamp every time an event is sent
- Seconds since last event: calculates elapsed time since last event timestamp
- Session ID: id for current session (matches timestamp of session start)
- Session number: number of current session
- Cookie value: full cookie value (undecoded)