Contacts associated with my gmail accounts disappeared while converting from outlook 3650home to outlook 365 business. I had 2 business exchange server accounts and 3 gmail accounts set up. THe exchange server accounts set up fine with the associated contact files, but the gmail account's contactws disappeared. I tried importing them from a backup PST file and I can now see address books with the contacts in them, but annot sellect them in the cc or bcc fields of an email.
In the old days, this would have been a matter of moving them to another folder. I'm sure there is a simple solution. But I can't find it in the help files.