Consolidated shipment error occurs when a user attempts to generate a shipping label for multiple parcels in a single shipment, for a carrier which does not support consolidated shipping.
Consolidated shipping for EasyPost is only available for the following legacy carriers:
If one of these carriers is selected and Generate shipping label is pressed, labels for all the packages in the shipment will be generated as a consolidated shipment, in a single PDF document.
Any other carriers not included in the list above support single parcel shipping only. If multiple parcels are part of a shipment with one of these carriers, you will receive an error upon pressing Generate shipping label. To solve this error, please select a carrier that supports consolidated shipments or convert to an advanced sale, split the order into multiple fulfillments of one parcel, and generate a shipping label for each fulfilment of one parcel.