Disable the Warning Message in T-code MD50

Hi Experts,

                Here i have facing the one problem in client side. In PP Module T-code MD50 while running the entering the T-code the warning messages comes like Material grid  valid from 23.06.2014 does not exist. " Message no. 8J010 ". i need to set customize no messages..

Plz anyone guide me how to resolve it.

Regards,

  Thangam.P