Guest User Sign-in with Microsoft Entra ID

If you're a guest user (e.g. from an implementation Partner or another external organisation) requesting access to an EnergySys customer’s EnergySys application, you must access app.energysys.com from a Private Browsing window. Using a Private Browsing window avoids Microsoft using your existing login cookies from your own organisation’s tenant, which ensures that you will be routed correctly for authentication.

Users will be prompted to enter their username (this is their username internal in their own organisation) and they must then select 'Sign-in options'.

On the next screen, select Sign in to an organisation from the available options, and enter the required domain name provided on the invitation email you will have been sent from the company that is allowing you guest access.

Once you have selected this option you will be asked to provide your login credentials to access your organisations authentication method.

Reviewed: July 2025