I.R.I.S. Cardiris Pro 5 - Manual (Page 99)

Cardiris TM 5 – User Guide
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All the database fields from Cardiris - including any Custom
fields you created - are included in each Google contact.
Tip: you can also move the contacts to the standalone application
Google Contacts. To do so, select the contacts and click Groups >
My Contacts > Apply.