Unexpected inventory received - error by amazon

Perhaps not surprisingly Amazon’s definition for that reason is:

"We received unexpected inventory in your shipment. To make it available for sale, create a new listing . For additional help, contact Seller Support. "

Is any of your shipment showing as being received? Did you label it yourself or were you wanting Amazon to do it? Did you box everything yourself or did it go direct from a supplier? Is that ASIN still showing properly in your inventory?