I was incredibly shocked to find out that even though HubSpot now has Invoices as an Object (yay!), you can only see them in one location...and it's buried. Not only that, I am very confused why you can associate an Invoice with a Contact or Deal, but when you go to that Contact or Deal record, you can't actually see the Invoice.
It would be very helpful to be able to see all the Invoices associated with a Deal or Contact on that record. Also, we should have the ability to automatically associate the Invoice with a record. Right now it's only possible to do that through an integration (with the Contact) or manually which is incredibly cumbersome.