I'd like to second this request with a related / similar option.

When a client pays, the ability to CC another member of the organisation, or even an external billing email (eg finance@, accounts@ etc) on the payment received email, including the ability to attach the paid PDF invoice.

Having a copy of the paid invoice is really important for businesses, and currently you either have to give billing / finance contacts FULL access to the hosting account, or setup a manual forwarding of the paid emails etc.

I'd love to streamline this so that you can easily just specific a billing or finance email, that can be automatically CCed on key Growth Suite emails - especially to include a PDF of paid invoice.