adding users

Hi,

I created two ZohoCRM accounts, one for henk@skyrove.com and one for allister@skyrove.com.

I tried to then add allister@skyrove.com to the henk@skyrove.com under the Company Name, Skyrove, but received an error that the user 'allister@skyrove.com' already exists.

How do I add these users under one account?

Best,
Henk
allister