The action to add an attachment to a Warehouse Inventory Transfer has been added under the Action “Manage Documents”. You can also choose to attach the document for a specific SKU with the option “Select SKU to associate”
You can now link a WFS Shipment to a PO for direct vendor fulfillment. 
Products can be added via file upload to a Warehouse Inventory Transfer.
The Shipped On date has now been added as Column F in the Excel export of Warehouse Inventory Transfer.
The option “INTERACTIVE” has been added as a Box Content Source on the Edit shipment page of an FBA Inbound Shipment to allow box content management from Seller Central.
The following actions have been added to Delta.
The file format has been updated in accordance with Amazon’s new format when you use “Export Shipment Plan” from an FBA Inbound Shipment.
We have improved the validation when doing an Initial Bin Import to ensure that there is no bin inventory in the warehouse before allowing the import to be done. If the warehouse has bin inventory, Basic Product Bin Adjustment must be used.
We added a ‘Prep Instruction List’ to WFS shipments to indicate the Labeling required for Kits and items where the UPC in SC does not match the UPC on Walmart.
We have added “Partially Picked” as an option in the Status search filter for Warehouse Inventory Transfers.