Brewster ← Knowledge Base I received a CoreDAVHTTP 502 error on my Mac or iPhone. What does this mean? Will FullContact sync my Brewster contacts to my Google Contacts account? How does FullContact differ from Brewster? I am a Brewster Premium user and a FullContact Premium user. Are my subscriptions merged? Will FullContact migrate my Brewster contact data to a new FullContact account?