I want to integrate Google SSO in my Flutter App. To do so, in Google Cloud Platform, I configured the Google Auth Platform.

Currently, I have correctly verified all necessary data:

• Domain verification
• Billing account verification
• Updated contact information
• Project contacts
• OAuth app verification.

However, with my Owner user (which has all permissions), when trying to create a Client under the Clients tab I get the message

To create an OAuth client ID, you must first configure your consent screen

and a button that navigates to Branding tab.

I don't know what I am missing. I tried to contact Google support but didn't get an answer.

Any ideas?

I want to integrate Google SSO in my Flutter App. To do so, in Google Cloud Platform, I configured the Google Auth Platform.

Currently, I have correctly verified all necessary data:

• Domain verification
• Billing account verification
• Updated contact information
• Project contacts
• OAuth app verification.

However, with my Owner user (which has all permissions), when trying to create a Client under the Clients tab I get the message

To create an OAuth client ID, you must first configure your consent screen

and a button that navigates to Branding tab.

I don't know what I am missing. I tried to contact Google support but didn't get an answer.

Any ideas?

• google-cloud-platform
• oauth-2.0
• google-oauth
• google-sso

• If you go to cloudshell and run : gcloud alpha iap oauth-brands list , do you get any output? – dany L Commented Feb 6 at 21:22

4 Answers 4

As the warning says, you need to set up the consent screen for your app to be able to proceed with clients creation. You need to configure it to provide transparency to users about what data your app will access and ensures compliance with Google’s privacy policies.

Similar question: Can't create Google oAuth clientId becuase of the consent screen

You must configure an OAuth consent screen before using an OAuth 2.0 client ID. However, if setting up your OAuth consent screen does not solve the problem, try it again after a day or two, as it has worked for some users based on this related thread. Additionally, I suggest reviewing again the OAuth 2.0 setup documentation from Google Cloud Platform Console Help, as you might have missed something.

I fix the issue by setting the Auth Platform using the "old experience".

I have been using the "new experiencie" (new UI) but couldn't make it work.

Once I followed all the steps in the old experiencie, I was instantly able to create the Clients for Android and iOS.

Don't know if it is a Google issue or what, but as I said, I set up all the required information (following the documentation) which was correctly verified by Google.

I had this same issue. I fixed it by disabling my ad blocker extension for the Google Cloud console.