I'm in the process of building our email preference center and am stumped on the best way to approach this issue. As a preface our email preference center will actually be similar to Marketo's - specifically the field that autofills the email for known leads. Email Subscription Center - Marketo
If a known lead decides to change their email address in that email field - how do I prevent a new lead from being created in my CRM (Salesforce) as the email data will be brand new? Is there a way to ensure that the email gets updated in Salesforce for that Lead or Contact record and no new lead is created?
I want to avoid having our CRM filled with blank leads only containing email data and nothing else.
Looking forward to hearing your suggestions!