"You have crossed the maximum number of contact persons that can be added."
One of my clients has changed her email address but I need to add her new email address to the "Email to" at the bottom of the invoice page. But when I tried to add her new details to the "+ Add New" I get the following message:
"You have crossed the maximum number of contact persons that can be added."
I went in to the customer section and saw I had 4 "CONTACT PERSONS", so I deleted one and tried again to add her new details in again... still got the same error message.
How can I fix this issue as she, along with the accounts payable department need to both get the invoice?