ItemAdjustmentLinkType Enum

Defines the type of adjustment that created the link

AllItems : 0

Indicates that this record is part of an "All Items" type adjustment (ie an adjustment that affects all items on an order, or all items within an adjustment group)

OrderN : 1

Indicates that this record is part of an "Order N" type adjustment (ie a Buy X Get Y Free arrangement)

SelectedItem : 2

Indicates that this record is part of a "Selected Item" type adjustment (ie applies to a single line item)