Account assignment object doesn't display in warehouse tasks SAP EWM

[Adachi_sour]

Hi, experts.

I try to config cost center goods issue process in SAP EWM.

1.MB21 : Create reservation(movement type 201)
2.MIGO : Post goods issue refer to the reservation number.
         →outbound delivery is created.
3./SCWM/PRDO : Create warehouse order & warehouse task refer to the outbound delivery number.
4./SCWM/MON : Check the outbound delivery item & warehouse task.

I would like to check cost center code in those documents, but, I can check it in the outbound delivery only.

In the outbound delivery, I can check it in the "Account assignment object".

That item also exists in the warehouse task, but the item is blank space.

■outbound delivery

■warehouse task

Is it a system failure? Or is it a lack of some settings?

Thank you in advance.

Best regards.

So Adachi.