I can't integrate our application with Google assistant using Dialogflow.
We created an account on "Google actions"
We implemented Oauth2.0 in our server. It is working and meeting the standards mentioned here : https://developers.google.com/actions/identity/oauth2-code-flow
We added our authorization links. According to documentation mentioned here : https://developers.google.com/actions/identity/account-linking
We added in dialogflow account fulfillment linked to our server and we enabled Google assistant
we use the simulator of google assistant for testing. Everytime it responds with "It looks like your App account is not linked yet. App left the conversation"
This link is requested and we repeat the request and we change the scope . But still account not linked. Please Advise about the missing part.
The google assistant simulator is calling this uri : URI : MY_AUTHORIZE_URI?response_type=code&client_id=XXXXXXXXXX&redirect_uri=https://oauth-redirect.googleusercontent.com/r/APPLICATION_NAME&scope=username+password&state=Cs4CQUxWM2ROVHU4dVdvU..
My URI is responding with (username or password is not valid) because the send data is "username password". The google assistant replies with "It looks like your app_name account is not linked yet.".