Project stock Transfer to Subcon Vendor with movement 541 Q

Hi Experts,

I have Activated Business Functions LOG_EAM_ROTSUB, and manage to transfer Project stock Q to subcon R using MIGO with refer to subcon PO with account assignment Q and Item Category L with movement type 541.

Issue:

When I try to transfer Project Stock to subcon without refer to subcon PO, system give error "Movement type 541 Q is not planned. (Entry is not copied over)"

Anyone can advise how to perform movement 541 Q without refer to subcon purchase order?