---
title: "Introduction to the PC connector for Outlook"
description: "The PC connector for Outlook is installed on the User's Windows PC (Mac is not supported) and establishes a real-time connection between OnceHub and the User..."
url: "https://help.staticso2.com/non-visible-articles/pc-connector-for-outlook/introduction-to-the-pc-connector-for-outlook"
---

The PC connector for Outlook is installed on the User’s Windows PC (Mac is not supported) and establishes a real-time connection between OnceHub and the User’s Outlook Calendar. The connection to Outlook Calendar is [completely secure](https://help.staticso2.com/non-visible-articles/pc-connector-for-outlook/non-visible-articles/pc-connector-for-outlook/non-visible-articles/pc-connector-for-outlook/security-details-for-the-outlook-connector// "Security details for the Outlook connector")**.** Your calendar information is always kept private and calendar appointments and free/busy patterns are never revealed to Customers.

Note

In addition to connecting with your Outlook Calendar on your PC, OnceHub also can connect directly to the [Office 365](https://help.staticso2.com/introduction-to-office-365-calendar-connection "Introduction to Office 365 Calendar Connection") API. This might be a more stable option than connecting to your local computer’s Outlook software through a downloaded connector. If you use Office 365, OnceHub recommends that you connect through our API integration with the Office 365 cloud rather than through the Outlook client integration. [Learn more about the differences between the Office 365 and Outlook integrations](https://help.staticso2.com/differences-between-calendar-integrations "What are the different Office 365 connection options?")

In order to start syncing the connector, you will need to:

1. [Download and install the OnceHub connector for Outlook on your Windows PC](https://help.staticso2.com/non-visible-articles/pc-connector-for-outlook/non-visible-articles/pc-connector-for-outlook/non-visible-articles/pc-connector-for-outlook/installing-the-pc-connector-for-outlook// "Installing the PC Connector for Outlook")
2. [Connect and configure the connector’s settings](https://help.staticso2.com/non-visible-articles/pc-connector-for-outlook/connecting-and-configuring-the-pc-connector-for-outlook/ "Connecting and configuring the PC connector for Outlook")
3. [Configure calendar settings for your Booking pages](https://help.staticso2.com/scheduleonce/event-types-booking-pages/booking-pages/booking-pages-associated-calendars "Booking page: Associated calendars section")

***Important:*** *After you download the OnceHub connector for Outlook, you are in a pending connection state with your Outlook Calendar and you will not be able to accept bookings until you install the connector and perform the first sync.*

## Outlook sync modes

[Section titled “Outlook sync modes”](#outlook-sync-modes)

* **Real-time**: The connector will automatically push to OnceHub any change made to Calendar appointments in the calendars that you have selected to sync with OnceHub. When a booking is made in OnceHub, it will automatically sync and populate your relevant Outlook Calendar.
* **Auto-sync every X minutes/hours**: The connector will sync at every time interval that you choose.
* **Manual sync**: When you choose to sync manually, a **Sync** button will be added to the connector. Manual sync mode is useful for testing and is not a recommended sync mode.

[**Learn more about Outlook sync modes**](https://help.staticso2.com/non-visible-articles/pc-connector-for-outlook/non-visible-articles/pc-connector-for-outlook/non-visible-articles/pc-connector-for-outlook/outlook-connector-sync-modes// "Outlook connector sync modes")[](http://help.scheduleonce.com/customer/portal/articles/2148551-when-are-outlook-events-treated-as-busy-in-scheduleonce-)