Standard function module or bapi to confirm and pack TO from LT12

Hi,

I am looking forward to automatically confirm and pack a transfer order. A standard function exists in LT12 and I need to reproduce it in order to use it in a Z packing program:

Each time we scan an item, we are confirming a transfer order from the tray to the HU.

Thanks in advance for your help.

Regards,

Thibault