PowerApps Portals allow organizations to create websites which can be shared with users external to their organization. It empowers anyone either inside or outside your organization to interact with CDS data. It allows users to submit their information privately with straightforward admin control.

• Engage with external customers and partners - It gives internal and external users secure access to your data either anonymously or through commercial authentication providers like LinkedIn, Microsoft Account, Facebook and Google, or enterprise providers such as Azure AD B2C, and Okta. It sets authentication requirements, customize data for each user .
• Enable anyone to build responsive websites - It easily match websites to the look and feel of branding with customizable portal templates and responsive themes. It helps to create and manage the content external users and partners can access using an intuitive interface and step-by-step guidance with no code required. Websites can also be created for employees who can connect using their corporate Azure Active Directory account.
• Integrate all your data - It brings data from the apps you use which includes Power BI and Power Automate together with Common Data Service and enable your users to interact with it anytime, anywhere. And It enriches portals with model-driven forms, views, lists, charts, and dashboards to offer more value with each interaction.