New to GA4 is the concept of event parameters. Think of these almost as custom dimensions - they are additional pieces of information that you can pass on an event, and analyze in GA. Regardless if you use GTM, or our native integration, you will have access to the following parameters. 

Parameter Name Description
roadster_page_name The Digital Retailing page name (ex. /R-online/vdp-new, /R-instore/srp-used, etc.)
customer_id The unique ID assigned to a customer after they have submitted their PII
agent_id The unique ID assigned to an agent
event_category The Digital Retailing event category (also the event name)
event_action The Digital Retailing event action
event_label The Digital Retailing event label
event_value The Digital Retailing event value
item_make Vehicle make
item_model Vehicle model
item_year Vehicle year
item_variant Vehicle trim
item_condition Vehicle grade
item_id Vehicle vin
item_number Vehicle stock number
item_price Vehicle price
item_color Vehicle color
item_type Vehicle type
item_fuel_type Vehicle fuel type
item_inventory_date Vehicle added to inventory date