Add Shipment Carrier mapping manually via Field Mappings

Use the following steps to achieve this:

1. Navigate to the Fulfillment section and click the Field Mappings option against the NetSuite Fulfillment to eBay Shipment Add flow.
   
   
2. Click on the Settings for Ship Method to ShippingCarrierUsed mapping.
   
   
3. Set up a Static Lookup. Enter the respective Shipping Carriers under the Export Field (values from NetSuite) and Import Field (values on eBay).
   
   
4. Also, select appropriate default Option at the bottom.
5. Save the mapping and also Save the mappings page after that.