Fdk shipment service.get is not fetching shipment already exists

I have creaetd this order FYMP650174A6010E422A on fynd x5 for refrence please check attached screenshot below and getting no shipment found for this order . have send external order id as payload in it .

These are the methods available for fetching shipment details.

https://partners.fynd.com/help/docs/sdk/platform/order/getOrderById/

https://partners.fynd.com/help/docs/sdk/platform/order/getShipmentById/

Can you please check which one is being used and also the right parameters are being passed.