Hi,
For any material, you have particular material number or material code- Just cross check booked material stock with material number or material code( MMBE,MB52 and MB5B) in system and compare actual stock for that material number or material code from site/storage location- Any mismatch on material stock go for physical inventory with MI01, MI04 and MI07 t.codes.
If more material numbers or material codes involved, then all the materials stocks to be checked, verified, counted and then corrected with physical inventory only.
Regards,
Biju K