API to create multiple Shipment Lines

I am trying to create multiple PO Shipment lines on a PO. I did not file any API to create Shipment Lines on already created PO.

I found this document R12: Is It Possible To Add New Shipment Lines To A Standard Purchase Order Line Via PDOI or API? (Doc ID 1924095.1)

Does this actually import/ Create multiple PO Shipment Lines? Have any one used it before.

Any thoughts are inputs will be very helpful. Thank you in advance.