Connect Your AI to Your Business Tools · Lesson 3 of 8

Lesson 3: Connect your email, calendar and files

25 minutes. The connection that pays off first.

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Email, calendar and files are where most office time goes. They're also the easiest to connect, because Google and Microsoft are the first tools every AI assistant supports.

Find the section for your AI assistant and your email provider (Google Workspace or Microsoft 365). Do that one. Skip the rest.

A reminder from Lesson 2: start read-only where you can, and connect with your work account.

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Plan: available to all Claude users. On Claude Team or Enterprise, an Owner or Primary Owner must enable these connectors for the organization first.

• Open Claude and start a new chat.
• Select the + in the message box (bottom left), then Connectors.
• You'll see Gmail, Google Calendar and Google Drive. Switch on the one you want. The first time, Claude sends you to Google to sign in and approve access. Sign in with your work Google account.
• Repeat for the other two.
• To see all your connectors in one place later, go to Customize, then Connectors. (In the desktop app, Customize is in the sidebar.)

What to know:

• Claude can draft emails, and it can also send, reply and forward from Gmail. By default it asks for your approval before each send. Leave it that way.
• Calendar can create, change and delete events. Same rule: approve each one.
• Gmail attachments: Claude sees that an attachment exists (its name and details) but can't read what's inside it through the Gmail connector.

Plan: available on all Claude plans, with a work Microsoft 365 account only. Personal @outlook.com or @hotmail.com accounts can't connect.

One-time admin step: someone with the Global Administrator role in your Microsoft 365 (in Microsoft Entra, Microsoft's sign-in system) has to approve Claude for your whole organization. If that's not you, send your IT partner this sentence: "Please grant tenant-wide consent for the Claude Microsoft 365 connector, read-only for now." On Claude Team or Enterprise, the Claude Owner also has to add the connector.

• Go to Customize, then Connectors.
• Find Microsoft 365 and select Connect.
• Sign in with your work Microsoft account and review what it asks for.

What to know:

• It starts read-only. It can search Outlook, OneDrive, SharePoint and Teams. Sending email, managing calendar events and creating files are separate "write tools" that an admin has to turn on. That's a good default. Keep it until you've finished Lesson 6.

Plan: apps are available to all logged-in users, but some apps and features need a paid plan, and availability can differ by region. On Business, apps are on by default and your admin controls them. On Enterprise and Edu, an admin has to turn them on.

OpenAI lists apps for Gmail, Google Calendar, Google Drive, Outlook Email, Outlook Calendar, SharePoint (which includes OneDrive for work or school, but not personal OneDrive) and Microsoft Teams.

• Open Settings, then Plugins (or go to chatgpt.com/plugins).
• Search for the app you want, for example Gmail or Outlook Email.
• Select it. If it's part of a plugin, select Install plugin, then Connect.
• Sign in with your work account and approve access.
• You can also start a message with the app's name ("Gmail, find...") and ChatGPT will offer to connect it the first time.

What to know:

• OpenAI renamed this area in July 2026, from "Apps" to "Plugins." If your screen still says Apps or Connectors, it's the same place.
• Gmail and Google Calendar now accept more than one account (for example, work and personal). For this course, connect only the work one.
• Check the app's permission setting. Under "Allow read actions," ChatGPT reads without asking but asks before making changes. That's the setting you want for now.

Here the question isn't "how do I connect," it's "which Copilot do I have." Microsoft renamed these in 2026, so the names on your screen may differ from older guides.

• The free tier (now called Microsoft Copilot Chat, included with eligible Microsoft 365 business plans) is grounded on the web. It can't search your mailbox, files and calendar on its own. It can work with an email or Teams chat you have open, or a file you upload.
• The paid tier (Microsoft 365 Copilot, sold to small businesses as Copilot Business for up to 300 users; Microsoft's pages use both "Microsoft 365 Copilot Business" and "Microsoft Copilot Business") reaches your email, files, meetings, calendar and Teams automatically, through your own Microsoft 365 permissions. Microsoft's pricing page on October 7, 2026 showed $21 per user per month on an annual plan, with a promotional $18 for the first year through December 31, 2026. Check the current price before you buy.

There's nothing to "connect" for your own Microsoft 365 data on the paid tier. It's already there. Your work in this lesson is to check it can see what it should, and nothing it shouldn't.

Connecting Gmail or Google Calendar to Copilot is also possible, through what Microsoft calls Copilot connectors. Your admin turns it on in the Microsoft 365 admin center. Then each person signs in from Copilot Chat: select the ... menu, then Settings, then Sources, and Connect.

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Once connected, ask your assistant these three, in this order. Each one uses a different part of the connection.

• Email: "Find emails from customers in the last 7 days that I haven't replied to. List sender, subject and one line on what they need."
• Calendar: "What's on my calendar tomorrow? For each meeting, tell me who's in it and whether anyone emailed me about it this week."
• Files: "Find the most recent [price list / proposal / policy document] in my files and tell me the date it was last changed."

Then one write test, with approval:

• "Draft a reply to the first email on that list. Don't send it." Read the draft. Then delete the draft yourself, or keep it if it's good.

• Your assistant answered questions 1 to 3 using your real email, calendar and files, not general advice.
• Spot-check one answer: open your inbox or calendar and confirm one item is right.
• For question 4, it made a draft and did not send anything. If it tried to send, you saw an approval prompt first.
• On Copilot: ask "Show me files about [a topic only managers should see]." If it finds something it shouldn't, that's a sharing problem in SharePoint or OneDrive. Stop and fix it with your IT partner before going further. Microsoft's own guidance warns that overshared content affects what Copilot shows.

If the assistant says it can't find anything, check that the connector is switched on for this chat and that you signed in with the right account.

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Next: the tool where your business keeps its money, customers or orders.

→ Lesson 4: Connect a business app

Previous: Lesson 2: Before you connect anything · Next: Lesson 4: Connect a business app and run three real tasks