Hello, now with the new release of Whatsapp inside Zoho Team Inbox it makes more sense than ever to be able to sync contacts between Zoho Team Inbox and Zoho Books. 

For our organization Zoho Team Inbox Contacts module is completely useless due to not being able to sync it with Zoho Books. I am even thinking about just start using CRM so I can be able to Sync Zoho Books to CRM and then CRM contacts module to Team Inbox...

I would be very grateful if this integration could be added. Zoho Books is integrated with Zoho Mail but not with Zoho Team Inbox. It does not makes a lot of sense I believe...