The error FBA_INBOUND_CARTON_027 appears in addition to one of the errors listed below as the root cause. It happens when box content information cannot be sent over to Amazon properly.
Please click on which error above you are receiving along with the FBA_INBOUND_CARTON_027 error and follow the instructions. Once the root cause is resolved, the FBA_INBOUND_CARTON_027 will be as well.