Amazon Cognito introduces administrator creation of users in Your User Pools

With this launch, administrators and developers can create users in an Amazon Cognito user pool. A user pool is a fully managed user directory that makes it easy to add sign-up and sign-in to your mobile and web apps. Use the new AdminCreateUser API to set up accounts for new users and send them a customized invitation with their user name and a temporary password. You can also use this feature to control membership in a user pool by only allowing administrators to create users or also allowing users to sign themselves up.
Quelle: aws.amazon.com