Reddit clicks are captured automatically from the platform's click id, and UTMs and ad id parameters add campaign and ad ids so results break down to the ad. Import spend by CSV or API to see ROAS, CPA and cost per new customer next to attributed revenue.
The Reddit conversion integration sends Purchase and Lead, with rdt_cid and _rdt_uuid, about 30 seconds after each conversion and once per integration. Where tracko.js saw the platform's pixel fire the same event, its event id is reused for deduplication. It needs ad account id and a Conversions API token.