Amazon Cognito now makes it easier for developers to add OIDC-providers that are currently not built-in to the service console, like Salesforce or Ping Identity. Lengthy sign-up forms create friction for the registration and conversion of users. This new Cognito feature simplifies the registration process by allowing users to login with an existing OpenID account into a User Pool.

Source: Amazon Web Services News Amazon Cognito Now Supports the Capability to Add Custom OIDC-providers