Importing Material transaction on a FIFO organization.

Question

We are trying to load material transactions using MTL_TRANSACTION_INTERFACE.
The organization is setup as FIFO costed. We are able to load the MTL_TRANSACTION_INTERFACE, we can also sees
the transaction on the Open Interface from inventory and to run the transaction import.
The material transaction is created in inventory and visible on the Material Transaction Interface as well.
If we check the material transaction layers we are not able to see the cost layer, as has not been created.
We would like to understand if additional setup is needed in order to have the cost layer created for the imported
transactions.
We have found a note on metalink (https://metalink.oracle.com/metalink/plsql/f?p=130:14:12598912247982725952::::p14_database_id,p14_docid,p14_show_header,p14_show_help,p14_black_frame,p14_font:NOT,262980.1,1,1,1,helvetica) that was referring to WIP and says to load also the CST_COMP_SNAP_INTERFAC if we want to have the cost layers created.
But the table above requires a wip entity id, and we are not loading Work in process, only misc receipt.

Answer 1

Are the loaded transactions still in MTL_TRANSACTION_INTERFACE or have they been transferred to Material Ledger i.e. MTL_MATERIAL_TRANSACTIONS ?
I assume that when referring to Cost Layers, you are referring to cost layers in CST_INV_LAYERS. If so, I would like to mention that cost layers in this table are created when the transaction is being Costed which happens after the transactions get created in MTL_MATERIAL_TRANSACTIONS and when Cost Manager has costed the transaction.
Hope it helps.
Thanks, Ram