Where should user accounts for Power Apps be created?

User accounts for Power Apps should be created in Azure Active Directory (Azure AD). Azure AD serves as the backbone for identity management and access control for various Microsoft services, including Power Apps. When user accounts are created in Azure AD, they are automatically provisioned with the necessary authentication and authorization capabilities required to access Power Apps and other Microsoft services.

Using Azure AD simplifies the management of user identities and allows organizations to leverage features such as single sign-on (SSO), multi-factor authentication (MFA), and role-based access control (RBAC), enhancing security and user experience. Moreover, Azure AD also provides a centralized user management system for all Microsoft cloud services, making it easier to maintain user accounts and control permissions across different applications.

Creating user accounts in the other environments mentioned does not fulfill the requirements for managing user identities specifically for Power Apps. The Microsoft 365 Admin Center primarily manages Microsoft 365 subscriptions and services, while the Power Platform Admin Center is focused on the administration of environments and governance for Power Platform tools but does not directly create user accounts. Power Apps Studio is where applications are built and designed and does not serve as a platform for user account management.