Amazon is not accepting USPS tracking numbers from orders combined on
ShipStation. After creating labels, I'm finding the separate orders
still marked as "unshipped" on Amazon. On Amazon I get the message that
"Same tracking ID entered for multiple o...
I'm having issues also: order price is totally wrong, tracking numbers
not automatically uploading to Amazon, etc. I received notice yesterday
that my account was switched to a new Amazon API. That may be the cause,
but sure if frustrating.