Order Number did not referesh for asset when copied from existing purchase requisition

HI ,

i am creating purchase requisition with account assignment category A- Asset with capital investment order

The following i did.

created internal order - KO01

created asset AS01 and assigned the internal order in the asset

trying to create a purcahse requistion from existing purcahse requisition which is account assigned (A)

when doing so, the system is allowing me to change the asset number yet the order number remains old and it is not showing the new

order number.

1. is there a way to copy purchase requisitions without account assignments
2. any thing i need to do bring new order no

what may be reason,pls advice.

Zubair