Do I need to provide a Harmonised System (HS) code and where can I find the correct code?  Does Maersk Go offer a Switch Bill of Lading?  What is a Bill of Lading? What happens if a LOA is not provided for the first Maersk Spot shipment before the first shipment is gated in? What is a Letter Of Authority? Will I be able to submit additional instructions?  Can I switch consignee or shipper after the Bill of Lading (BoL) has been issued? Can I change my place of delivery after I have received my Bill of Lading (BoL)? Can I get my Original Bill of Lading (OBL) before vessel sails if I have paid all the necessary charges? How do I amend the Bill of Lading? If I want to change the details of my shipping instructions or if I notice an error, how do I amend it? How do I amend my Shipping instruction?