Limit sales document type per plant

Dear expert,

Could anyone advise me how do we define sales document type to plant since our business user made mistake to select wrong plant in Sales Order. We don't want it to happen once again and we don't want to remove the plant from material since it will effected to other sales document type that will used.

We understood that Sales document type assign to Sales Org and plant assign to material and company code .

Thank you.