Because AWS Cognito doesn’t support Azure ADs multi tenancy setup, it is not possible to allow just any Azure AD tenant to federate into a Cognito User Pool like a social sign on from Google or Facebook.
Tag: OIDC
Setting up Enterprise Federation from Azure Active Directory to Amazon Cognito using Open ID Connect
How to setup enterprise federation to allow users authenticated in an Azure AD tenant to seamlessly sign into an Amazon Cognito User Pool using Open ID Connect (OIDC).