Message no. MG144 (price cntl)

Hi,

In one of our plant I can't change the 'price unit' in accounting view1 of mmo2,

it keep poping message that field price/cntl is reqd field and it doesn't contains any value... whereas price/cntl have S there,

So MM02 change not possible, it is a FERT material.

Any idea please.

Best Regards,