Showtime not syncing custom fields to CRM

Showtime not syncing custom fields to CRM

Hi,

I have an opt in yes/no box on one of my registration forms and after clicking push to CRM is doesn't sync this field over..... does Showtime support syncing custom fields to CRM?

Trying to then sync to Campaigns so I can segment by the tick box.

Many thanks.

Rgds

Jon