Service Charges allow you to create additional charges for other associated costs like a clean up service or staffing costs.
If a Charge applies to a specific Customer, you can apply the Charge to that Customer in their profile in the Customer Module.
You set whether the Service Charge is a fixed amount or on a % of the Order Value.
You can also set when the Service Charge applies i.e. on Orders where value is more than £150
These Service Charges will show on the Invoice you send to the Customer as a separate item.