M365Plug
A no-code, drag-and-drop builder that lets a small business owner wire their Outlook, Calendar, OneDrive, and Teams data into CRMs, helpdesks, and forms — handling the Microsoft OAuth consent flow without a developer.
Small business owners and operations managers who want Outlook, Calendar, and OneDrive connected to tools like HubSpot, Airtable, or Notion
- One-click Microsoft 365 OAuth connect with admin consent walkthrough
- Library of pre-built recipes (Outlook-to-CRM sync, Calendar-to-Sheets, OneDrive backup to Drive)
- Per-user permission scopes explained in plain English before any consent screen
- Error console that tells a non-developer which mailbox permission is missing
A trending GitHub repo of 96 stars shows developers still hand-roll Microsoft OAuth onboarding for end users — there is demand for an actually user-friendly version that any business owner can click through.
Outlook integrates with 9,000+ apps on Zapier and Microsoft's own Power Automate is heavily marketed to SMBs, showing real demand for M365 no-code workflows, but the market is already well-served.Microsoft Outlook Integrations | Connect Your Apps with Zapier ↗
Very crowded: Zapier, Microsoft Power Automate (bundled free with M365), Bardeen, Make, n8n, Relay, Activepieces, Onlizer, and Kissflow all already offer drag-and-drop M365 integrations with OAuth handled.Connect Office 365 Outlook + OneDrive with no-code integration ↗Bardeen OneDrive + Outlook Calendar integration ↗10 best Zapier alternatives in 2026 ↗
Power Automate is free with any M365 license, setting a powerful $0 price anchor for SMBs; the cited GitHub repo at 96 stars is a weak signal of paid demand and most non-MS alternatives sell on broad ecosystem reach, not just M365.Zapier vs. Power Automate: Which Is Best? ↗Power Automate vs Zapier: A Cost & Security Analysis ↗
Microsoft 365 and Microsoft Graph are entrenched enterprise infrastructure with a massive long-term installed base; OAuth-on-Microsoft-Graph is a permanent integration surface.Authentication and authorization basics - Microsoft Graph ↗
The 96-star GitHub repo (daimon3332/Outlook-Oauth-GetToken) demonstrates the OAuth flow is well-understood by indie devs, and Microsoft provides documented SDKs and consent tooling; building a thin drag-and-drop wrapper is achievable but multi-tenant token refresh and admin consent edge cases add complexity.