Connecting to your personal Exchange Calendar

In this article, you will be given step-by-step instructions to connect your OnceHub account with your Exchange (Outlook) Calendar, using our personal Exchange integration.

To connect to your Exchange Calendar:

  1. Sign in to your OnceHub account and navigate to ScheduleOnce.
  2. Go to Setup and open the left sidebar. Select Integrations -> Calendar integration.
    • If you are connected to any other calendar, you will need to disconnect first. Existing bookings that have not yet taken place will be added to your Exchange Calendar after you connect. 
  3. In the Exchange Calendar box, click Connect. The Connect to Exchange Calendar popup will appear (Figure 1).
    Figure 1: Connect to Exchange Calendar popup
  4. Enter your email and password, as you would normally log into your mailbox via Outlook or any other method. Make sure your credentials are correct in order for the authentication to succeed. 

Additional connection information

Even if your credentials are correct, the connection might not be successful due to various Exchange configurations. If you see the following screen (Figure 2), additional information will need to be provided.

Figure 2: Connect to Exchange Calendar popup with additional information

In the EWS URL field enter the address of your EWS in the format:  Learn how to determine the EWS URL

The value to enter in the User name field depends on your Exchange configuration, and may be any of these three options:

  1. Leave blank - not required for many Exchange servers.
  2. Try entering your email again, which some Exchange servers accept as a user name.
  3. Enter your full Domain\UserName as you log into other Windows systems:

Click the Next button and the connection should work now. If you are still not connected, make sure you have entered all the values as above, making sure all the formats and slashes in the right places.

If the connection still fails, search your organization's internal knowledge base or contact your IT support, as there are many possible Exchange configurations and settings. Learn more about Exchange connection troubleshooting

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