Importing invoices when Contact does not exist

Importing invoices when Contact does not exist

When importing invoices, if the 'Customer Name' does not exist as a contact record within Zoho, it would be 'nice' if it warned of this in the 2nd step of the import wizard.

I'm assuming that having a corresponding contact record is not required (though I would think it should be)- but, if it is not a requirement, then a warning would be helpful. - And if that's a bug and it should prevent the upload/import of the invoice, more the better.