In what state does the app have to be in iTunes Connect to allow me to test the in app purchase features? I’ve tried sending it the codes but it’s always invalid. I’ve checked many of the checklists online and made sure they were completed.
Does the app need to be reviewed (or the in app purchase)? Which “status” do they need to be in in order to be able to test it?
Note: I have waited a couple days and currently both are waiting for review.
No, review is not required for that.
You can upload it and then reject it immediately.
as long as you can add products in iTunes connect it will be enough for testing.