---
title: Joan’s permissions in Microsoft 365
description: This article outlines the permissions Joan requires to access your company’s calendar with read and write capabilities. These permissions are strictly limited to what is necessary for managing room reservations. No additional permissions are required.
---
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1. [Help Center](https://support.getjoan.com/knowledge?hsLang=en)
2. [Room management](https://support.getjoan.com/knowledge/room-management?hsLang=en)
3. [Microsoft 365](https://support.getjoan.com/knowledge/room-management?hsLang=en#microsoft-365)
# Joan’s permissions in Microsoft 365
To enable seamless on-the-spot room bookings, Joan requires permissions to access your company's calendar with read and write capabilities. These permissions are strictly limited to what is necessary for managing room reservations. No additional permissions are required.
Joan is designed to access only the meeting information provided through the calendar including details required for room booking, such as time, date, and room availability. Unless you use the Room Booking feature, or the Advanced Analytics feature on the Joan Enterprise plan, this data is not permanently stored on our servers. It is gained through an API call, parsed and sent directly to the device. When the Room Booking feature is used, room calendar events are synchronized with our internal database for a rolling window of three months into the future, as described in the [Room booking](https://support.getjoan.com/knowledge/room-booking?hsLang=en) article.
To enhance usability, we temporarily cache room data in memory. This caching allows us to process multiple consecutive requests to the calendar API efficiently, ensuring faster responses when users check room availability or make reservations.
When pairing Joan with Microsoft 365 using a delegated user account, we securely save the user credentials. This step is necessary to establish a connection between our system and Microsoft 365, allowing us to access the calendar on behalf of the user.
- [Getting started](https://support.getjoan.com/knowledge/getting-started?hsLang=en#main-content)
- [General information](https://support.getjoan.com/knowledge/getting-started?hsLang=en#general-information)
- [Joan Devices](https://support.getjoan.com/knowledge/getting-started?hsLang=en#joan-devices)
- [Room management](https://support.getjoan.com/knowledge/room-management?hsLang=en#main-content)
- [Account configuration](https://support.getjoan.com/knowledge/room-management?hsLang=en#account-configuration)
- [Room configuration](https://support.getjoan.com/knowledge/room-management?hsLang=en#room-configuration)
- [Microsoft 365](https://support.getjoan.com/knowledge/room-management?hsLang=en#microsoft-365)
- [Exchange](https://support.getjoan.com/knowledge/room-management?hsLang=en#exchange)
- [Google](https://support.getjoan.com/knowledge/room-management?hsLang=en#google)
- [iCalendar](https://support.getjoan.com/knowledge/room-management?hsLang=en#icalendar)
- [Using Joan in a shared environment](https://support.getjoan.com/knowledge/room-management?hsLang=en#using-joan-in-a-shared-environment)
- [Buildings](https://support.getjoan.com/knowledge/room-management?hsLang=en#buildings)
- [Interfaces](https://support.getjoan.com/knowledge/room-management?hsLang=en#interfaces)
- [Integrations](https://support.getjoan.com/knowledge/room-management?hsLang=en#integrations)
- [Troubleshooting](https://support.getjoan.com/knowledge/room-management?hsLang=en#troubleshooting)
- [Joan devices](https://support.getjoan.com/knowledge/joan-devices?hsLang=en#main-content)
- [Device configuration](https://support.getjoan.com/knowledge/joan-devices?hsLang=en#device-configuration)
- [Device settings in the Joan portal](https://support.getjoan.com/knowledge/joan-devices?hsLang=en#device-settings-in-the-joan-portal)
- [Custom content](https://support.getjoan.com/knowledge/joan-devices?hsLang=en#custom-content)
- [Using Joan with 3rd party devices](https://support.getjoan.com/knowledge/joan-devices?hsLang=en#using-joan-with-3rd-party-devices)
- [Mounting your Joan device](https://support.getjoan.com/knowledge/joan-devices?hsLang=en#mounting-your-joan-device)
- [Device troubleshooting](https://support.getjoan.com/knowledge/joan-devices?hsLang=en#device-troubleshooting)
- [Workplace management](https://support.getjoan.com/knowledge/workplace-management?hsLang=en#main-content)
- [Account configuration](https://support.getjoan.com/knowledge/workplace-management?hsLang=en#account-configuration)
- [Additional Desk booking features](https://support.getjoan.com/knowledge/workplace-management?hsLang=en#additional-desk-booking-features)
- [Users](https://support.getjoan.com/knowledge/workplace-management?hsLang=en#users)
- [Integrations](https://support.getjoan.com/knowledge/workplace-management?hsLang=en#integrations)
- [Frequently Asked Questions](https://support.getjoan.com/knowledge/workplace-management?hsLang=en#frequently-asked-questions)
- [Visitor Management](https://support.getjoan.com/knowledge/visitor-management?hsLang=en#main-content)
- [General information](https://support.getjoan.com/knowledge/visitor-management?hsLang=en#general-information)
- [Devices](https://support.getjoan.com/knowledge/visitor-management?hsLang=en#devices)
- [How to invite your visitors?](https://support.getjoan.com/knowledge/visitor-management?hsLang=en#how-to-invite-your-visitors)
- [App permissions](https://support.getjoan.com/knowledge/visitor-management?hsLang=en#app-permissions)
- [Workplace Digital Signage](https://support.getjoan.com/knowledge/workplace-digital-signage?hsLang=en#main-content)
- [Setting Up Your Digital Signage](https://support.getjoan.com/knowledge/workplace-digital-signage?hsLang=en#setting-up-your-digital-signage)
- [Compatible Hardware and Supported Media](https://support.getjoan.com/knowledge/workplace-digital-signage?hsLang=en#compatible-hardware-and-supported-media)
- [Using Joan Workplace Digital Signage in Practice](https://support.getjoan.com/knowledge/workplace-digital-signage?hsLang=en#using-joan-workplace-digital-signage-in-practice)
- [Mobile application](https://support.getjoan.com/knowledge/mobile-application?hsLang=en)
- [Analytics](https://support.getjoan.com/knowledge/analytics?hsLang=en)
- [Plans & Billing](https://support.getjoan.com/knowledge/plans-billing?hsLang=en#main-content)
- [Subscription plans](https://support.getjoan.com/knowledge/plans-billing?hsLang=en#subscription-plans)
- [Billing information](https://support.getjoan.com/knowledge/plans-billing?hsLang=en#billing-information)
- [Prepaid subscription codes](https://support.getjoan.com/knowledge/plans-billing?hsLang=en#prepaid-subscription-codes)
- [Ordering and shipping](https://support.getjoan.com/knowledge/plans-billing?hsLang=en#ordering-and-shipping)
- [Returns and cancellations](https://support.getjoan.com/knowledge/plans-billing?hsLang=en#returns-and-cancellations)
- [Information for resellers](https://support.getjoan.com/knowledge/plans-billing?hsLang=en#information-for-resellers)
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