adding new user who already has a Zoho CRM ID

adding new user who already has a Zoho CRM ID

A guy in my company signed up for Zoho previously. He poked around, then never used it again.

Now I want to add him to our Zoho CRM account. Unfortunately, it gives me a message that says: "Zoho CRM ID already exists. Please use a different Zoho CRM ID." That's because he's already got an "account" under his work emails address.

The fellow I'd like to join tells me that, on his end, the system won't allow him to change the Zoho CRM ID for the account. Obviously I don't want to use a personal email address for this account for him.

Any suggestions?

Thanks.