Hi,
that message means that you have a deconsolidation step in between (that is that step IB02). That is something you did not write before ("I configured in the system with the steps unload oiling , packing ( oiling and packing at different work centers) and putaway").
In this case you have to get the system to create the final tasks before already according the packaging specification which says that each individual piece is in one Hu - which I have not managed yet.
Brgds
Juergen