Send Mass and Bulk Calendar Invites with Google and Outlook

Sending a calendar invitation to a few people is easy. But when you need to invite hundreds or thousands of people to the same webinar, conference, training session, customer meeting, or business event, doing it manually can quickly become time-consuming.

BLOG

10/7/20262 min read

Sending a calendar invitation to a few people is easy. But when you need to invite hundreds or thousands of people to the same webinar, conference, training session, customer meeting, or business event, doing it manually can quickly become time-consuming.

This is where a bulk calendar invite platform such as Let’s Calendar can help.

What Are Mass Meeting Invites?

Mass meeting invites are calendar invitations sent to a large number of attendees without creating every invitation manually.

For example, an event organizer may need to send mass meeting invites in O365 to employees, customers, or webinar attendees. Similarly, a marketing team may need mass calendar invites in Google for an upcoming online event.

Instead of adding every email address manually, Let’s Calendar allows you to create one campaign, upload your attendee list, and send the invitations in bulk.

Send Bulk Calendar Invites from Google or Outlook

Different organizations use different calendar platforms. Some use Google Workspace, while others depend on Microsoft Outlook or Microsoft 365.

With Let’s Calendar, you can connect your supported Google or Microsoft account and use it to send personalized calendar invitations at scale.

This makes it useful for teams searching for:

The workflow is simple: create your event, upload your attendee list using CSV/XLSX, select the sender, and send the invitations.

Why Use Let’s Calendar for Mass Invitations?

The main advantage is that the invitations do not have to look like one large group invitation.

Let’s Calendar supports personalized 1:1 calendar invites, so each recipient can receive their own invitation without seeing the other attendees' email addresses. You can also include personalized attendee information when required.

It can be useful for:

  • Webinars and online events

  • Conferences and exhibitions

  • Training sessions

  • Customer meetings

  • Corporate events

  • Internal meetings

  • Recurring events

You can also manage RSVP responses and make event updates or cancellations when event details change.

How to Send Bulk Meeting Invites in Outlook or O365

If your organization uses Microsoft 365 or Outlook, the process is straightforward:

  1. Connect your Microsoft 365/Outlook account.

  2. Create your calendar invite campaign.

  3. Upload your attendee list.

  4. Add the event details and meeting link.

  5. Send the invitations.

The same approach can be used when you need to send mass meeting invite in Outlook or manage bulk calendar invites in O365 without entering every attendee manually.

For Google users, Let’s Calendar also supports bulk invitation workflows through Gmail/Google Workspace, making it easier to manage mass calendar invites in Google for larger events.

A Simple Platform for Bulk Calendar Invitations

If you regularly organize events and find yourself manually adding hundreds of attendees to Google Calendar or Outlook, Let’s Calendar can simplify the process.

You can create the event once, import your contacts, send the invitations, and manage responses from one place.

If you need to send bulk or mass meeting invitations without managing every attendee manually, try Let’s Calendar. It offers a free account to get started.

Get started: www.letscalendar.com

MassCalendar.in

Send Bulk & Mass Calendar Invites Instantly

CONTACT

Meetings

+44 (0) 203 916 5117

© 2025. All rights reserved.

Help?