I am trying to generate an api user and key for the sandbox environment.I am sure i am using the correct subscription key, and uuid.I tried the postman collection online. This returns the error: access_token or its expiry date are missing.Authentication is set to none, and i could not get this working.I then tried to create this request in a local postman install.The request looks the same as the online version, but returns error 404.The response body isContent-Length: 0Strict-Transport-Security: max-age=31536000; includeSubDomainsX-XSS-Protection: 1; mode=blockRequest-Context: appId=cid-v1:e996501c-e721-4ac1-97ff-dc6887b85e8cDate: Thu, 14 May 2026 10:02:01 GMT I have these headers: Ocp-Apim-Subscription-Key, X-Reference-Id, Content-Type. The request body is : {"providerCallbackHost":"www.google.com"}Any suggestion to resolve this will be highly appreciated.