Assigning IAM policy problem!

I’m trying to assign IAM policy for non IAM user.I’ve attached a new policy for this user however it does not work. Can you help me ?

Thanks in advence!

To assign permissions to federated users, you can create an entity referred to as a role and define permissions for the role. When a federated user signs in to AWS, the user is associated with the role and is granted the permissions that are defined in the role. For more information, see Creating a role for a third party Identity Provider (federation)