["subid" clickid] ["eventName" (message-mapped-param :in-app-event :event_name)] ["eventValue" event-value])) http://example.partner.net/tracking/pixel?amount=5USD&subid=xyz123&eventName=in-app-purchase&eventValue=5 Generate UI “Render” url {:monetary "5USD" :in-app-event {:attribution {:clickid "xyz123"} :event_name "in-app-purchase" :event_value "5"}} Context