You can add an adjustment to account for any one of the following:
Manual: Enables you to manually define any type of adjustment that should be
Managed Service: Enables you to define rate for any managed service that should be included in the bill. For instance, you can use this to define rate for services such as Office 365.
Discount: Enables you to define managed discount to add a discount on one or more resources. This discount should be included in the customer bill.
Markup: Enables you to define markup for define markup rate that should be applied on the rate