How to get notifications after placing an order using a specific fulfillment service?

I created the fulfillment service using

https://shopify.dev/docs/api/admin-graphql/2023-01/mutations/fulfillmentServiceCreate

[2023-04-04 09:26:06] local. DEBUG: FulfillmentServiceCreate Response: {“data”:{“FulfillmentServiceCreate”:{“fulfillment Service”:{“id”:“gad:// showily/Fulfillment Service/64263586069?id=true”, service Name":“TSAS Fulfillment Test8”,“callbackUrl”:“https://9bdc-2401-4900-1cb9-d7b4-75bc-22c-130f-8d96.ngrok.io/idea tarmac”,“fulfillmentOrdersOptIn”:true},“user Errors”:}},“extensions”:{“cost”:{“requestedQueryCost”:10,“actualQueryCost”:10,“throttleStatus”:{“maximumAvailable”:1000,“currentlyAvailable”:990,“restoreRate”:50}}}}

I am not able to get any notification after placing order using particular fulfillment service name

https://9bdc-2401-4900-1cb9-d7b4-75bc-22c-130f-8d96.ngrok.io/idea tarmac/fulfillment_order_notification