Hi Arnab1,
You can use the Fulfillment API along with the Order API to update shipment date, carrier code and carrier name.
First, you need to find the ID of the order that you want to update. You can do this by using the GET /admin/api/2023-10/orders.json endpoint and providing the necessary parameters to find your order.
Once you have the Order ID, you need to retrieve the Fulfillment ID associated with the order. You can use the GET /admin/api/2023-10/orders/{order_id}/fulfillments.json endpoint, replacing {order_id} with the actual Order ID.
After retrieving the Fulfillment ID, you can update the tracking information using the POST /admin/api/2023-04/orders/{order_id}/fulfillments/{fulfillment_id}/update_tracking.json endpoint.
Hope this helps!
