what is the diffrece MS04 and MD04

hi all,

what is stock of the MS04 and MD04 n what is differences.

I am facing the one problem regarding this t codes MS04 & MD04 the balance stock not equal,and MD04 stock balance that two storage locations not considered but in MS04 Point of considered that is the diff amount in this tcodes,how to set the this two storage locations not added to the MS04 what are the configuration required.