- https://readyxrm.blog/2019/07/24/configure-azure-ad-b2c-for-powerapps-portals/
- https://ulrikke.akerbak.com/2020/02/16/customize-the-sign-in-and-registration-page-in-power-app-portals/
- https://community.dynamics.com/crm/f/microsoft-dynamics-crm-forum/263073/customizing-the-registration-crm-portal-registration-page
- https://www.linkedin.com/pulse/customizing-microsoft-dynamics-crm-365-portal-login-valenti-clari