Transfer of stock from Project Stock

Hello All,

I am changing Profit  Center in Material Master. But for some some materials are having project stock then these stock is not showing under Material Master as these are restricted stock against Project/WBS with account assignment "Q".

After changing the PC in material master when i am issuing material to Project with 281 Q at that time Inventory account gets credited with New PC instead of Old PC. because of this Inventory is always shown under old PC and negative inventory shown in New PC.

How shall i proceed with this or how can i do changing PC activity in Material Master with respect to PS stock.

Thanks and Regards

KP