Industry Sector Inquiry >>>please response

hi,

I'm just a newbee....
Is there anyone can give

their opinion or definite solution to my inquiry.

Is it ok to modify Industry Sector of Material from O to M?

Pertaining that material are connected/ indicated in 4 OA. If yes, will it be safe and can't affect other data, pleaase

kindly advise. If no, please advise if the best way to do is to delete and re-create material.

Thank you, Jes