I own a number of brands that sell on Amazon, and I've always used an app called HighFive that automatically sends the email you've almost certainly seen that asks you to rate something you bought (without it you have to click a button on each order to send it).
It's always been free, but because of a change to the way Amazon charges third party app devs, they were going to start charging next month. Since the whole app is just a couple of API calls and storing a record of which orders you've sent the request to already, Claude Code built it in 5 minutes.
In general, the Amazon Seller UI is a cluster (especially since I have one account for each brand, so I constantly have to switch between them). There are lots of subscription apps to make your Amazon data more useful and accessible, but Claude Code with access to the Amazon APIs pretty much replaces all of them. I spend very little time in the actual Amazon UI now and mostly just ask my trusty assistant for the info that I need.