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 Customer before, a Customer Custom Field Added Message is generated instead.
ReadonlytypeReadonlyvalueCustomFieldValue based on the FieldType after the Set CustomField update action.
Generated after changing an existing Custom Field on a Customer using the Set CustomField update action.