We currently sync Bank account, Bill, Chart of accounts, Contact, Credit note, Currency, Customer payment, Custom field, Estimate, Invoice, Item, Journal, Project, Reporting tag, Sales person, Tax, Template, User, Bank account custom field value, Bill document, Bill custom field value, Bill tax, Bill line item, Chart of accounts transaction, Chart of accounts document, Chart of accounts custom field value, Contact address, Contact document, Contact opening balance, Contact person, Contact reporting tag, Contact custom field value, Credit note line item, Credit note credited invoice, Credit note associated contact, Credit note contact, Credit note tax, Credit note shipping charge tax, Credit note document, Credit note custom field value, Customer payment document, Customer payment invoice, Customer payment custom field value, Custom field option, Estimate document, Estimate line item, Estimate tax, Estimate associated contact, Estimate contact, Estimate custom field value, Invoice document, Invoice line item, Invoice tax, Invoice shipping charge tax, Invoice associated contact, Invoice contact, Invoice custom field value, Item reporting tag, Item default price bracket, Item custom field value, Journal custom field value, Journal document, Journal line item, Journal tax, Journal comment, Project user, Project document, Project custom field value, Project task, Reporting tag option, Bank account custom field value option, Bill custom field value option, Bill line item discount, Bill line item tax, Chart of accounts custom field value option, Contact custom field value option, Credit note line item tax, Credit note line item discount, Credit note custom field value option, Customer payment custom field value option, Estimate custom field value option, Invoice line item tax, Invoice line item discount, Invoice custom field value option, Item custom field value option, Journal custom field value option, Journal line item tax and Project custom field value option (see our
Data Model for full details). If there's something else you need
just ask.