ReadonlynameName of the Custom Field that changed.
Optional ReadonlypreviousCustomFieldValue based on the FieldType before the Set CustomField update action.
When there has not been a Custom Field with the name on the Order before, an Order Custom Field Added Message is generated instead.
ReadonlytypeReadonlyvalueCustomFieldValue based on the FieldType after the Set CustomField update action.
Generated when an existing Custom Field has been changed using the Set CustomField action.