I’ve successfully created Google Integration for contacts.
When first time i click “Sync Contacts”, it imports all existing contacts from Google. Then after adding new contact to Google Contacts and again “Sync Contacts”, it creates duplicate of already imported contacts.
For example, I have Cristiano Ronaldo in my Google Contacts.
Then I Sync.
Now I’ve Cristiano Ronaldo in my ERPNext.
Then I add Lionel Messi to Google Contacts
Again I sync.
Now I have Cristiano Ronaldo, Cristiano Ronaldo-1 and Lionel Messi in my ERPNext.
I wish I could explain my problem.