Google Contact Fields Not Available For Mapping!!

Google Contact Fields Not Available For Mapping!!

Why do some of the Fields that I generated in Google Contacts appear in the list of availalble Fields for mapping, and others not?  Also, Zoho Salutation doesn't recognize Goolge Prefix as same, but I can't edit the name either one uses for that field.  If I have a Prefix value, Zoho imports it into the First Name Field with a Pick List of Salutations!!  Go figure.