We currently sync Activity, Activity type, Company, Contact, Country, Currency, Custom field, Contact custom field value, Deal custom field value, Company custom field value, Deal, Lost reason, Pipeline, Product, Stage, Timezone, User, Won reason, Activity contact, Activity assignee, Activity reminder, Custom field option, Contact custom field value option, Deal custom field value option, Company custom field value option, Deal contact, Deal product, Product price and Activity reminder assignee (see our
Data Model for full details). If there's something else you need
just ask.