Authorization and permissions request
In this step, you will see a permissions request. Click “Login to Azure AD.”
Virto Calendar App Getting Started
If you have tenant administrator rights, check "Consent on behalf of your organization" and click "Accept." Alternatively, contact your tenant administrator to do this.
By checking this box, the administrator authorises all users in Azure so that each user does not get this permissions request pop-up all the time when using the app.
If you don't receive this alert message, just skip this step.
Virto Calendar App Getting Started
Next, administrator should open the Calendar Overlay Pro app and click the "Edit Calendar" icon on the top left.
Edit Calendar icon
In calendar settings, administrator will see a message on the right-hand side stating that Virto Calendar requires additional permissions.
These permissions need to be granted to the application so it can identify the type of user (site administrator, some other user with permissions, etc.) to be able to create and edit information in the application.
Administrator should click "Grant required permission."
Calendar settings
A window with an expanded list of required permissions to use the Virto calendar will open. Click the checkbox and the "Accept" button.
Consent on behalf of your organisation
Calendar Overlay Pro requests permissions, but they are delegated. This means they are activated only by a particular user from your company with their permission. These permissions are required to let the calendar overlaying feature work.
You can find further details of this step in the"Calendar App Update: New Authorization Process" article.