I'm trying to understand what is the criteria currently used by HubSpot to populate the Latest Source property?. Half of my contacts have Latest source populated. When I compare the records of the contacts that have this property populated and the ones that hasn't, there are records that have exactly the same type of activity but some have latest source and some hasn't.
According to this article, it looks like HubSpot is backfilling latest source property information from before 15th November so could likely be related to that.
According to this article, it looks like HubSpot is backfilling latest source property information from before 15th November so could likely be related to that.