Zoho CRM Office 365 integration

Zoho CRM Office 365 integration

I am the Superuser for Zoho CRM and have installed the Office 365 integration.  This has given me a Zoho CRM Contacts folder in my Outlook, both in the 365 version and also the desktop app.  But none of the other Office 365 users in my organisation can see that Contacts folder.  They can't view the addresses in there and when they start typing a name or address, it doesn't pop up as an option for them.  Only for me when signed on as my self.   What do I need to do so that the other Office 365 users can see the Contacts in Outlook?   They are all registered as "Manager, Standard" in Zoho and all belong to the same Office 365 organisation.

Thanks

Kingston