Transfering from expense subinventory

[HUSSEINMDEHJ]

Dear All,
I have a serious issue and i need your help ,scenario is that
i have 2 types of subinventory Goods and Bonus and i have one item decleared as costed item during the entry of internal requisition when i try to transfer qty from Bonus subinventory in HO to Bonus subinventory in Branch i got the following message :
APP-po-14704-you can not source from an expense subinventory

Goods subinventory is asset but Bonus is an expense subinventory
your fast response will be appreciated

Regards,

Hussein