On the Shipment Merging form, select a shipment to merge in the Shipment field. All shipments for the customer of that shipment are displayed in the grid.
Select the shipments you want to merge into the shipment displayed in the Shipment field.
Note: You can only merge credit card shipments with other credit card shipments for the same customer and Ship To address. Also,
you cannot merge shipments that have different currencies.