How to prevent error message for material description in MDG material detail screen, when user click on check action

Dear Experts,

I have a requirement for making material description as non mandetory in change request view of mdg material screen.

I have done that using field usage in get data method of feeder classes, but still message is displaying.

This message 'Material description is mandatory is displaying with check action only, but not with save or submit after i anhance field property as not mandetory.

How to prevent error message for material description in MDG material detail screen, when user click on check action.

Thanks

Sukumar