Thanks for info.The landing page is not a Marketo page - its wordpress page where the form is a marketo embedded form. The third party is adept at wordpress and knows nothing about...
What does this mean for instance using Salesforce professional (which does not come with an API)? I we going to lose all syncing to all market salesforce fields beyond the 16?
Thanks for your response. Record was created first in Salesforce and synced to marketo, then uploaded a csv file with different first name, same email address to Marketo. Marketo ...