The management, modification and backup of Google contacts in Banana Accounting will soon no longer be available, as Google has deprecated the Contacts API to access and modify contact data.
The users who are using this feature for their Address Book will therefore be able to read and modify Google contacts ONLY UNTIL Google maintains this service (date currently unknown). The data saved in Banana's AC2 file will always be accessible.
We invite you to stop using this feature of Google Contacts.
More information can be found on the Google Contact Management page.