Material Reservation

Hi Gurus

I put this question on SD forum but my problem cover a APO as well so ..

I have a question.

I'm doing reservation for product / plant with MB21. After that I see reservation in CO09 and in MD04 as well. But when I create a order and I put reserved material and when I click on button (display availablity) I don't see this reservation.

It is only problem with one plant for other plants everything works fine. I compared I think everytything and I didn't see any difference .

Could you help me with it.

Best

Piotr