When the related Appeasement were set to status COMPLETED, only the the custom attributes of the appeasement item can be changed.
Order post-processing APIs (gillian) are now inactive by default and will throw
an exception if accessed. Activation needs preliminary approval by Product Management.
Please contact support in this case. Existing customers using these APIs are not
affected by this change and can use the APIs until further notice.
Set a parent item. The parent item must belong to the same
Appeasement. An infinite parent-child loop is disallowed
as is a parent-child depth greater than 10. Setting a parent item
indicates a dependency of the child item on the parent item, and can be
used to form a parallel structure to that accessed using
ProductLineItem.getParent().