I created a Sync between Zoho CRM and Zoho campaigns. The sync is basic:

Accounts - Checkbox (False)

Accounts - Market (UME)

Contacts - Email (contains a value)

That part of it seems to work. However, I've requested other data fields to be mapped from Contacts, Accounts and Deals and almost none of this data is showing. All I get is First Name, Last Name and Email Address. A small number of the contacts may have one or more of the data fields populated, but the bulk of the data is missing, despite residing in the CRM.