EWM Function Module for Pack HU

Hi,

I am new to EWM and I have a requirement to Create HU and Pack HU. For Create HU, I am using FM /SCWM/HUHDR_CREATE however for Pack HU I am unable to find any FM? The closest one I found was /SWCM/PACK_UNPACK however for this I need source HU which I don't have. In ECC, there used to be BAPI_HU_PACK however I cannot find this in EWM system.

Please let me know if you know of any other FM for Pack HU?

Thanks,

Shrinivas