9.2 GR From production - Nested HU

Hello Expects,

I'm using EWM V9.2

I need to pack nested HU at the end of the production line. Pieces with serial numbers> Boxes> Pallets.

any suggestions how can I achieve this?

I have a created 2 levels packing spec.

I'm trying to use: RF Tcode:. RF> Inbound Process> Reciving of HU> Rec. HU BY Manufacturing Order> Rec.HU by HU

many many thanks in advance

Natalia