Am i missing the point? crm - invoice

Am i missing the point? crm - invoice

So i finally got down and dirty linking our zoho crm to invoices. What an improvement in look. AND you can send invoice that can be paid online. GREAT.
BUT
as usual a bit half cooked. I could find no way of bringing over the price books from zoho crm so i then needed to role the whole experiment back. What a waste of time again.
Please Please could we integrate them so they work in the real world or did i miss something.