Does WMS support FBA Transfer? How to submit an order for this scenario?

Yes. You can submit an inbound order for two different situations:

1)If the product transferred does not need to be put on the shelf and is transferred directly to the Amazon warehouse, please fill in the “cross dock” area when creating the inbound order;

2)If the transferred product needs to be stored for a period of time in the warehouse – when creating the inbound list, fill in the ‘Inbound List.’ 

This step will increase the items in the inventory. This also means that you need to create an outbound list to decrease the appropriate inventory after moving to the Amazon warehouse.