Hello Mark Topash1, Good day!Thank you for posting to Microsoft Community. We are happy to help you.

Per the description you have share with us, your issue is related to our hybrid team. You can post your issue using this link: Microsoft Exchange Hybrid Management - Microsoft Q&A

So far base on my knowledge you are trying to set up Zoom and you need the EWS URL found in EMC/ECP.

1. In the Exchange Admin Center, click servers.
2. Click Virtual Directories, then double-click EWS.

3-Click General, and locate the EWS URL.

Once you find the EWS virtual directory, the URL should be displayed there. It typically starts with "https://" and includes the server's name or IP address, followed by "/EWS" or a similar path.

Please note that the exact steps and terminology may differ depending on the version of Exchange you are using. If you're unsure or unable to locate the EWS URL, it may be helpful to consult your organization's IT support or Microsoft's official documentation for your specific Exchange version.

The default URL for EWS is **https:///ews/exchange.asmx(often this may be the same server that OWA is hosted on

If using the above URL with the appropriate domain is not functional, the correct URL can be retrieved in one of 2 ways:

1. The Exchange admin can use a PowerShell command on the exchange server

a. Open PowerShell on the Exchange server

b. Type Get-WebServicesVirtualDirectory |Select name, *url* | fl

c. The URL will be provided

Please feel free to let us know if there are any questions or if we got you wrong. We will continue to assist you based on the information you provide. We sincerely appreciate your patience and cooperation. Sincerely,Eben Ezer Tres | Microsoft Community Moderator

Hello Coach Tiffany H,

Good day! Thank you for publishing in Microsoft Community. We are happy to assist you!

First of all, I would like to express my sincere appreciation for the tremendous effort you've put into describing the entire scenario with screenshot. Your detailed and thoughtful explanation is truly commendable.

I understand from your description that you want to set your Outlook calendar to Zoom. Based on my general understanding, you may follow these steps. Steps to Integrate Zoom Calendar with Outlook

1. Install the Zoom for Outlook Add-in:
   • Go to the **** Microsoft AppSource **** and search for "Zoom for Outlook".
   • Click Get it now and follow the prompts to install the add-in. Please kindly follow this: Installing the Zoom for Outlook add-in
2. Configure Calendar Integration:
   • Open the Zoom desktop client and go to Settings.
   • Navigate to Calendar and Contacts.
   • Select Outlook and follow the prompts to sign in and authorize the integration. Please kindly refer this: Using calendar and contacts integration
3. Find the EWS URL (if needed):
   • Using Outlook Web App (OWA):
   • Sign in to Outlook Web App.
   • Click on the gear icon in the top right corner and select View all Outlook settings.
   • Navigate to Mail > Sync email. The EWS URL should be listed there.
   • Using PowerShell:
   • Open PowerShell on your Exchange server.
   • Run the command: Get-WebServicesVirtualDirectory | Select name, *url* | fl.
   • The EWS URL will be displayed in the output.
4. Authorize and Sync:
   • Once you have the EWS URL, enter it in the Zoom settings where prompted.
   • Follow the prompts to complete the integration and ensure bi-directional syncing is enabled. Please kindly refer this: Using calendar and contacts integration

Troubleshooting Tips

• Ensure Permissions: Make sure you have the necessary permissions to access the EWS URL and integrate it with Zoom.
• Check for Updates: Ensure both your Zoom client and Outlook are up to date.
• Contact IT Support: If you’re still having trouble, it might be helpful to reach out to your IT department for assistance.

Disclaimer: Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites, or any support related to technology. 

If anything is unclear or if you have any further questions, please feel free to let me know. I will be happy to assist you.

Thank you for your valuable time. Have a nice day!

Sincerely,

Nafis Iqbal Shuvo

I’m reading this: Impersonation and EWS in Exchange | Microsoft Learn

And this: Configure impersonation | Microsoft Learn

But I can’t figure it out. I basically need to create an Exchange service account that can read all user’s calendars. One that has the app-level impersonation to red calendars.

Can someone point me in the right direction?

The exact instructions are found at those links. At what point are you getting stuck?

Also - there is no “app-level impersonation to read calendars.” You’re granting the service account the “application impersonation” role - you’re allowing the service account to BE the user - there is no scoping it to just certain folders after that (aside from restricting the actual user). You can set this to read or read/write access, and you can scope it to a subset of users, but you can’t scope write access to just the calendar folder.

If you’re not comfortable with this method - there is always the more “admin-friendly” method of just granting read access to everybody’s calendar. This access can be scoped to just the calendars.

–

Which do you feel more comfortable with?