Adding the callback URL to the Google API Console

Copy the callback URL from PingOne and paste it in the Google API Console.

Steps

In PingOne, go to Integrations → External IdPs.
Locate the appropriate identity provider (IdP), and then click the details icon to expand the IdP.
Click the Connection tab.
Copy the callback URL and paste it to a secure location.
Go to the Google API Console at https://console.developers.google.com.
In the Projects list, select the appropriate project.
On the left, click Credentials.
In the Application list, click the appropriate application.
In the Authorized redirect URIs section, click Add URI, and paste the value that you copied from the PingOne console.

Enable the external IdP. See Enabling or disabling an identity provider.
Add the IdP to your authentication policy. See Editing an authentication policy.
Add the authentication policy to your application. See Applications.