Hi @Marianne Lamonaca ,
External recipients might not be able to RSVP if the invite is not set up to request responses correctly.
Ensure “Request Responses” is Enabled: When creating the invite, make sure the “Request Responses” option is checked. This ensures that recipients can send their RSVPs back to you.
If the issue is specific to external recipients, it likely relates to how their email clients handle hidden attendees. Here are a few targeted solutions:
Avoid using “Hide Attendees”: Instead, consider using the BCC method to keep email addresses private. Unfortunately, Outlook doesn’t have a direct BCC option for calendar invites (the option is only available for email), but you can use a workaround by adding recipients as "Resources".
Steps to Add Recipients as Resources:
Open Outlook and go to the Calendar section.
Create a new meeting by clicking on “New Meeting.”
On the Scheduling Assistant tab, add the resource.
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