Been entering books, so far so good, until I hit this ISBN: 9780192757784
I get the message:
"faultcode: AWS.InvalidParameterValue, faultstring: 9780192757784 is not a valid value for ItemId. Please change this value and retry your request."
all I've entered is a bookID and an ISBN.
ISBN is valid per:
I tried checking in all items and clearing the cache, no help. This is using bookshop pro the full version.