My goal is to generate a form in salesforce that I can send to an existing lead and have them update some details in their lead object directly.
I've created a pre-filled form that pulls in their Name, Lead ID, from SalesForce, and I flagged the LeadID field as upsert in Form Assembly. My understanding is that if I map the questions on this form to lead fields in SF, they should all write to that same lead (and that lead only). However, what happens is it just creates another lead separate from the original. Any ideas?