Add lead gen ID to CRM contact records

You get social leads without the lead-gen ID on CRM contacts, breaking paid social attribution. This adds the lead-gen ID to contacts so marketing ops can attribute spend same day.

Overview

Incomplete ad identifiers in contact records break campaign attribution and slow reporting across marketing and finance. This flow writes the lead-gen identifier to the matching CRM contact so marketing ops and finance analysts can attribute paid social spend and close reporting gaps the same day.