I am trying to replicate this: https://developers.facebook.com/docs/marketing-api/conversions-api/conversion-leads-integration Its useful because I can effectively target based on all stages in the customer journey.

However I do not wish to use Facebook/Instagram Lead Ads (Instant Forms)...

Instead I want to create custom stages, and have ads optimise for the final stage, with all stages impacting targeting. This way my ads will target people most likely to progress through my full funnel, resulting in a purchase.

Has anyone replicated this successfully?