Fed up with customers not tapping view/payment icon let's go back to how it was and knew they viewed invoice. customers are saying they did not receive invoice step up

Hello Andrewcaplen, 

You can see what status the invoice is on and if the customer has opened it or not and if it was sent or not., 

If you go to sales>invoices> in the status column if you click onto and the invoice under the status section you will be able to see if it was sent-viewed-paid-deposited, in there.