Pound Key Activation Code for Microsoft Verification
You’ll receive a phone call from Microsoft, asking you press the pound (#) sign on your office phone to verify your identity. You can set up your office phone to act as your two-factor verification method.
Combined Registration users won’t see an option to use an extension with theย Office phoneย option.
Set up your office phone number as your verification method
1. On the Additional security verificationย page, selectย Office phoneย from theย Step 1: How should we contact youย area, select your country or region from the drop-down list, type your office phone number, and then type your extension, if you have one.
2. In Step 2, you’ll receive a phone call from Microsoft, asking you press the pound (#) sign on your office phone to verify your identity.
3. Copy the app password from the Step 3: Keep using your existing applicationsย areaย and store it somewhere safe.
Note: You only need to use app passwords if you’re continuing to use older apps that don’t support two-factor verification.
4. Select Done.
Set up an authenticator app as a two-step verification method
You can set up an authenticator app to send a notification to your mobile device or to send you a verification code as your security verification method. You aren’t required to use the Microsoft Authenticator app, and you can select a different app during the set up process. However, this article uses the Microsoft Authenticator app.
Set up the Microsoft Authenticator app to send notifications
- On theย Additional security verification page, selectย Mobile appย from theย Step 1: How should we contact youย area.
- Selectย Receive notifications for verificationย from theย How do you want to use the mobile appย area, and then selectย Set up.
Theย Configure mobile appย page appears.
- Open the Microsoft Authenticator app, selectย Add accountย from theย Customize and controlย icon in the upper-right, and then selectย Work or school account.
Note:ย If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). selectย Allowย so the authenticator app can access your camera to take a picture of the QR code in the next step. If you don’t allow the camera, you can still set up the authenticator app as described inย Manually add an account to the app.
- Use your device’s camera to scan the QR code from theย Configure mobile appย screen on your computer, and then chooseย Next.
- Return to your computer and theย Additional security verificationย page, make sure you get the message that says your configuration was successful, and then selectย Next.ย The authenticator app will send a notification to your mobile device as a test.
- On your mobile device, selectย Approve.
- On your computer, add your mobile device phone number to theย Step 3: In case you lose access to the mobile appย area, and then selectย Next. Microsoft recommends adding your mobile device phone number to act as a backup if you’re unable to access or use the mobile app for any reason.
- From theย Step 4: Keep using your existing applicationsย area, copy the provided app password and paste it somewhere safe.
Note:ย For information about how to use the app password with your older apps, seeย Manage app passwords. You only need to use app passwords if you’re continuing to use older apps that don’t support two-factor verification.
- Selectย Done.





