Troubleshooting: "Another account from your organization is already signed in on this device"

This error occurs when Microsoft services are holding onto cached credentials or a previous account session on your device.

If you are signed in on another device (computer or phone), sign out of that device first and try again. If you are only using your current device, follow the steps below for your operating system to clear the cached credentials.

Windows Instructions

  1. Open Settings on your computer.

  2. Go to Accounts > Access work or school.

  3. Select the account currently listed, click Disconnect, and confirm.

  4. Restart your computer.

  5. Open your application and try signing in again.

Mac Instructions

  1. Close all Microsoft applications (Word, Excel, Outlook, Teams, etc.).

  2. Open Keychain Access (press Cmd + Space, type Keychain Access, and press Enter).

  3. Search for Microsoft or Office in the top-right search bar.

  4. Select and delete any saved entries related to Microsoft credentials (such as Microsoft Office Identities, MSOpenTechDomain, or ADAL entries).

  5. Restart your Mac.

  6. Open your application and try signing in again.

Print Article