Chykalophia Docs

How to sign in to Microsoft 365 on a computer, phone, or tablet — including what to do if you can't get in.

Signing in to Microsoft 365 gives you access to your email, files, and apps — all in one place. You can sign in from any web browser, or from the apps installed on your device.

Quick summary

Go to microsoft365.com — it now opens at m365.cloud.microsoft — and sign in with your work email address (like you@yourcompany.com) and your password. If your organization uses multi-factor authentication, you will also need to confirm the sign-in with your second method, usually an app on your phone. Once in, you can reach Outlook, OneDrive, Teams, and all your apps.

What you'll need

Your work email address (assigned by your admin)
Your password
Your phone, if multi-factor authentication is turned on

Signing in on a computer

Open your browser and go to microsoft365.com. Microsoft redirects it to m365.cloud.microsoft, so don't worry if the address changes.

Select Sign In.

Enter your work email address — for example, sarah@yourcompany.com. Click Next.

Enter your password and click Sign in.

If prompted, approve the sign-in on your phone. This happens if your organization has multi-factor authentication turned on. Open the Microsoft Authenticator app (or whatever method you set up) and approve the request.

You're in. You'll land on your Microsoft 365 home page. Select the app launcher (the grid of dots at the top of the page) to open any app.

You're signed in

Once signed in, use the app launcher to open Outlook, Word, OneDrive or Teams. Microsoft may ask "Stay signed in?" — answering Yes keeps you signed in on that browser, so you won't have to sign in again every time. Otherwise the sign-in isn't kept: Microsoft's documentation says it lasts 24 hours, or until you close the browser. Don't say yes on a shared or public computer.

Signing in on your phone

Download the Microsoft Copilot app from the App Store — it's the all-in-one app that used to be called Microsoft 365, and before that Office. Or download individual apps like Outlook, OneDrive, or Teams. Open the app, tap Sign In, and use your work email address and password. Approve the multi-factor authentication prompt if it appears.

For a full guide to setting up apps on your phone, see Microsoft 365 on your phone.

Signing in to the admin center

If you are an admin and need to manage your organization's accounts, sign in at admin.microsoft.com. Use the same work email and password, but this takes you directly to the admin dashboard rather than the regular Microsoft 365 home page.

Common questions

I forgot my password — what do I do?

Enter your user name, select Next, then select Forgot password and follow the steps. You will usually need access to your phone or a recovery email address. Resetting your own password only works if your admin has turned on self-service password reset, so if you don't see the option, ask your admin to reset your password for you.

It says my account doesn't exist. What does that mean?

This usually means either the email address is wrong, or your account hasn't been created yet. Check with your admin to confirm your account has been set up. Make sure you're entering your work email address, not a personal one.

This can happen if your browser is clearing cookies, or if your organization has set a short session timeout for security reasons. When Microsoft asks "Stay signed in?", answer Yes — that's what keeps you signed in on that browser. Without it, the sign-in only lasts up to 24 hours or until you close the browser. Also check that your browser isn't blocking cookies from Microsoft's sites. If it keeps happening, ask your admin.

I can't get through the multi-factor authentication step.

If you can't approve the sign-in on your phone (lost phone, no signal, etc.), you may have backup methods set up — like a code sent by text or a second phone number. Look on the sign-in screen for a link offering a different verification method. If you are completely locked out, ask your admin: they can reset your verification methods for you.

Need a hand?

If you're stuck, email support@chykalophia.com and we'll help. Include your website address and a screenshot if you can.

Signing in to Microsoft 365