Suggestion:
Customer is black listed or not on the ground of any certian reason. If the customer is black listed, system will not accept any order for the customer.
In Customer master, system has provided Black Listed field, It should be selected from the drop down values.Y-yes, N-no. Users have to enter the reason code for Black Listing. Users have to enter the Date from which the customer is black listed. Orders cannot be accepted from the customer from the specified date.