# Administrator's Guide to Installation and Configuration

Source: [https://docs.virtosoftware.com/docs/calendar-overlay-pro/administrators-guide-to-installation-and-configuration/](https://docs.virtosoftware.com/docs/calendar-overlay-pro/administrators-guide-to-installation-and-configuration/)
Product: Virto Calendar App
Updated: 2026-08-11

This guide provides step-by-step instructions for administrators to install and configure Virto Calendar App for Microsoft Teams or SharePoint. It covers the installation process, necessary permissions, and initial configuration steps to ensure the app functions correctly.

## Pages
- [Step-by-Step Installation Instructions](https://docs.virtosoftware.com/docs/calendar-overlay-pro/administrators-guide-to-installation-and-configuration/step-by-step-installation-instructions/index.md) — Ordered setup steps for Virto Calendar App: installing, authorizing, assigning roles, and managing calendar permissions.
- [Installing Virto Calendar in your own Azure](https://docs.virtosoftware.com/docs/calendar-overlay-pro/administrators-guide-to-installation-and-configuration/installing-virto-calendar-in-your-own-azure/index.md) — Technical guide for SharePoint and Microsoft 365 administrators deploying Virto Calendar inside their own Azure subscription.
- [Troubleshooting and Support](https://docs.virtosoftware.com/docs/calendar-overlay-pro/administrators-guide-to-installation-and-configuration/troubleshooting-and-support/index.md) — Introduces troubleshooting resources for Virto Calendar App: common permission problems, app errors, and resetting authorization.