Import CSV Line Items workflow question - Amazon Business Account Issue

Thank you for the specific export columns. It looks like Amazon may have changed its columns. I have:
• Order Date
• Order ID
• Account Group
• PO Number
• Order Quantity
• Currency
• Order Subtotal
• Order Shipping & Handling
• Order Promotion
• Order Tax
• Order Net Total
• Order Status
• Approver
• Account User
• Account User Email
• Shipment Date
• Shipment Status
• Delivery Status
• Expected Delivery Date
• Carrier Tracking #
• Shipment Quantity
• Shipping Address
• Shipment Subtotal
• Shipment Shipping & Handling
• Shipment Promotion
• Shipment Tax
• Shipment Net Total
• Carrier Name
• Amazon-Internal Product Category
• ASIN
• Title
• UNSPSC
• Segment
• Family
• Class
• Commodity
• Brand Code
• Brand
• Manufacturer
• National Stock Number
• Item model number
• Part number
• Product Condition
• Company Compliance
• Listed PPU
• Purchase PPU
• Item Quantity
• Item Subtotal
• Item Shipping & Handling
• Item Promotion
• Item Tax
• Item Net Total
• PO Line Item Id
• Tax Exemption Applied
• Tax Exemption Type
• Tax Exemption Opt Out
• Discount Program
• Pricing Discount applied ($ off)
• Pricing Discount applied (% off)
• Receiving Status
• Received Quantity
• Received Date
• Receiver Name
• Receiver Email
• GL Code
• Department
• Cost Center
• Project Code
• Location
• Custom Field 1
• Seller Name
• Seller Credentials