Regards-Carrier Service creation

[ctdevelopment]

I'm trying to develop a app for providing third party shipping rate. I tried to create a carrier service by referring this doc: https://shopify.dev/docs/api/admin-rest/2024-04/resources/carrierservice

Also i have successfully created in my development store its working fine. When i do the same for my production store its not creating and my production store is advanced yearly billing plan and i also confirmed with the support team to my store is eligible for create a carrier service.

and below is my node app code:

while running this app, my response is getting the existing carrier services only not the new carrier service which is i am creating. Also i'm not getting any errors while running the app. where is the issue?