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 |