Delivery Charges in sales order

Dear All,

hope you all are well.

recently our company has decide to start home delivery system from AX,

and they are planing to charge customer as delivery charges but the criteria is if the sales order amount is less then 3.000 $ then the delivery charges will applied and if the sales order amount is more then 3.000 $ then delivery charges will not applied.

now if automatic charges are available then it will be very good but in case if we have to define then also no problem we will assign it manually.

there are some charge code function which are available but i want if there is any proper function for delivery charges and which we can track in future also.

or any of the suggestion from you all guys which can full fill our requirement.