First of all 221 O is not valid. You have to use 221 Q.
Second, 551 O will not effect the project stock, it just scrap from vendor stock.
I suggest, you can take all movement type (which is already happens for the material) from MB51.
Otherwise, go to MB1A, press F4 on movement type.
Then short the special stock indicator,
Here you can find all movement types for goods issue, which is used for project stock..
Regards