Global Meeting Scheduler
🚀 Public Beta Now Open

Experience Fatigue-Free Global Meetings

Test our fairness-aware scheduling engine directly inside Microsoft Outlook. Get your instant beta activation key and sideload the add-in in less than two minutes.

Choose Your Onboarding Path
Select your account type to follow the appropriate setup steps:
🌟 Personal Outlook Fastest Setup

Microsoft Personal Account

For @outlook.com, @hotmail.com, and @live.com testers wanting quick personal evaluation.
  • ⚡ 2-minute self-serve install
  • 🔑 Free instant Beta Key
  • 🔓 No IT admin approval needed
Follow Personal Setup Steps →
🏢 Organization Pilot Zero User Keys

Microsoft 365 Organization

For Global Administrators, Privileged Role Admins, Exchange Administrators, and enterprise teams using Work or School accounts.
  • 🛡️ 1-Click Tenant SSO Authorization
  • 👥 Central deployment via M365 Admin Center
  • ✨ All users automatically activated via SSO
Follow M365 Organization Steps →
Step 1

Get Your Free Beta Key

Instant activation for up to 3 devices (Outlook Web, PC, and Mac). No password or credit card required.

Step 2

Download Manifest

Download the official Microsoft Office Add-in manifest XML file to sideload into your Outlook calendar.

📄
manifest.xml
Size: ~16 KB · Version 1.0.2.0 · Mailbox 1.5+
⬇️ Download manifest.xml
SHA-256 verified build · Secure HTTPS endpoints
Step 3

How to Install in Outlook

Follow these quick steps to sideload the add-in in Outlook on the web:

🌟 Recommended for Testers that don't have a work account with add-in deployment permissions: Personal Microsoft accounts (@outlook.com, @hotmail.com, @live.com) allow custom add-in sideloading by default without corporate IT restrictions.
  1. Download the manifest: Click the Download manifest.xml button in Step 2 above and save it to your computer.
  2. Open Outlook Calendar: Navigate to outlook.live.com/calendar in your web browser.
  3. Open Add-in Manager: Click New event in the top-left toolbar → On the event window ribbon, click the Apps icon (three squares with a plus) → Click Add apps.
  4. Access Custom Add-ins: In the left sidebar of the apps dialog, click Manage your add-ins (or My add-ins) → Scroll down to the Custom add-ins section.
  5. Install from File: Click Add a custom add-in → Select Add from file... → Choose the manifest.xml file you downloaded.
  6. Confirm Installation: Click Install on the warning prompt. The Global Meeting Scheduler ribbon button will immediately appear in your meeting draft toolbar!
  7. Activate with Your Key: Open the add-in taskpane, paste the GMS-XXXX-XXXX key generated in Step 1, and start scheduling!
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Step 1 · Tenant Authorization

1-Click Tenant Authorization & SSO Consent

1-Click Setup

Authorizes the Global Meeting Scheduler enterprise service principal (App ID: 08f23efc-e4a2-4f14-a2f8-0cd3f446ede3) and Microsoft Graph permissions in your tenant. This enables Single Sign-On and allows our backend to resolve participant working hours and mailbox timezones without storing email content or calendars.

✅
Multi-Tenant Service Principal Instantiates the application in your Microsoft Entra ID tenant
✅
Least-Privilege Scopes User.Read, MailboxSettings.Read for attendee working hours
✅
Single Sign-On (SSO) access_as_user eliminates individual login prompts for employees
👥
Required Administrator Roles Global Administrator or Privileged Role Administrator
🔒
Verified Microsoft Partner Michael Joseph Francis (MPN: 7131198 · mjfnet.com)
🏢 Open Enterprise Pilot Setup Wizard → Requires Global Administrator or Privileged Role Administrator role
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Step 2 · Manifest Download

Download Deployment Manifest

Download the official Office Add-in manifest XML file to upload into the Microsoft 365 Admin Center for centralized organization deployment.

⬇️ Download manifest.xml (~16 KB) SHA-256 verified build · Mailbox 1.5+ requirement set
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Step 3 · Centralized Deployment

Deploy via Microsoft 365 Admin Center

Zero User Action

Deploy the add-in to a targeted pilot security group or all employees across your organization with a single upload:

  1. Open the Microsoft 365 Admin Center.
  2. Navigate to Settings → Integrated apps.
  3. Click Upload custom apps at the top of the list.
  4. Select App type: Office Add-in → Choose Upload manifest file (.xml) from device.
  5. Select your downloaded manifest.xml → Validate → Assign users (e.g. your Pilot Testing Group).
  6. Deploy. The add-in will automatically appear in assigned users' Outlook ribbons within a few hours.
  7. Automatic Activation: Deployed users open the add-in and start scheduling immediately. Their corporate accounts are automatically authenticated and authorized via SSO — no keys needed!
🚀 Open Integrated Apps in M365 Admin Center → Deployment requires Global Administrator or Exchange Administrator role
For Employees & Champions

Not an IT Administrator?

If corporate policy prevents you from installing custom add-ins directly, submit our pre-formatted review template to your IT Helpdesk or Microsoft 365 administrator.

Includes publisher verification, least-privilege Graph scopes, and architecture security summary.
For Developers

M365 Dev Sandbox Testing

Testing in a Microsoft 365 E5 Developer sandbox? You can sideload directly via aka.ms/olksideload without tenant-wide deployment.

Developer sandboxes can use individual beta keys to test recurring series optimization and API features.

Need help or found a calculation edge case?

This public beta is focused on gathering real-world feedback from distributed teams across all timezones.

Contact Support → Privacy & Data Ethics →