I created a Platform Event, and now I'm building a process that is triggered by the Platform Event. The Platform Event parameters either contain a ContactId or a LeadId, but not both.
The process I'm building creates a Task Record, and I want to assign either the ContactId or LeadId to the whoIs field. So I'm trying to create it with a formula that checks isBlank on the ContactId, but I can't figure out how to access the Platform Event parameters from the Formula builder.
I can access the fields of the associated object record, but that record doesn't have the contact/lead ids.
Does Formula builder not have access to the Event params?