Q:

Specifying an AppEngine service with Cloud Endpoints

I have launched my Endpoints service and deployed my app onto AppEngine.  If I do not specify a service in my app.yaml file, the AppEngine uses the default service.  I am able to make a request using Postman and get a successful response.  
However, if I specify my own AppEngine service in my app.yaml file like below, I get a "Not found" error. 
runtime: python27
threadsafe: true
api_version: 1
basic_scaling:
    max_instances: 2
service: mycustomservice

What am I missing? How can I get Endpoints/AppEngine to see the mycustomservice service?

A:

In your Cloud Endpoints config "openapi-appengine.yaml" set "host" to the path of the non default appengine service you created
default:
[PROJECT_ID].appspot.com
additional service
[SERVICE]-dot-[PROJECT_ID].appspot.com

