Sales Order - Account Assignment Grp

Hi All,

In Sales Order -> Billing tab, there is a field called Account assignment group. At the moment, when a material is added to sales order during creation stage, this field gets updated from the data maintained in the material master & cannot be changed.

I would like to know, can we make this field selectable? If we can, then what are the impacts which would happen?

Hope my question is clear, await inputs.

Vivek