Zoho CRM transfer to new Google Apps account

Zoho CRM transfer to new Google Apps account

We set up a Zoho installation a few years ago and now want to integrate this with our Google Apps installation, however, when we try to do this, Zoho creates a new account to connect with our Google Apps installation using this domain. When we try to add the Google Apps domain to the older Zoho CRM account, it says that our email ID already exists.

Any ideas?