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ConnectApi.ChangeOrderItemSummaryInputRepresentation

A change to an order item summary.

Property	Type	Description	Required or Optional	Available Version
`changeType`	String	Whether a new order item summary is being created or an existing summary is being updated. Valid values are New or Update.	Required	66.0
`orderItemSummary`	SObject	The order item summary sObject representation that contains the changes for the Order Item Summary entity.	Required	66.0
`referenceId`	String	The unique reference ID for this order item summary. This field is valid only if the Change Type value is New.	Optional	66.0

Apex Reference Guide

ConnectApi.ChangeOrderItemSummaryInputRepresentation