Order Adjustments belong to an Order and contain information about an adjustment made to the cart. The standard adjustment types are 'Shipping', 'Discount', and 'Tax'. You can access all adjustments on the order in your templates with cart.adjustments, and you can access all adjustments made to a line item with lineItem.adjustments.
The name of the adjustment.
The description of the adjustment. For example, a shipping adjustment might explain the shipping costs in a sentence.
The total amount of costs added or removed from the order. This is not used in order totalling, this number represents the changes made to the line items or order totals.
Whether this adjustment is included in the price of the line item or order.
A json encoded array of information the adjustment used to perform its adjustment to the order. For example, all the shipping rules and amounts used to add shipping cost to the cart.
The ID of the order adjustment belongs to. (required)
The ID of the line item this adjustment belongs to. (optional)