---
title: "Login Changes to Microsoft Linked Services"
canonical: "https://tech.calpoly.edu/space/CPKB/3556048919/Login%20Changes%20to%20Microsoft%20Linked%20Services"
format: markdown
---
Many existing apps will require you to reauthenticate with the new [Microsoft Sign-In](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/3556048897) process on all of your devices. Below is a non-exhaustive list of applications that will ask for a sign-in.

- Zoom Outlook Plug-in
- Microsoft Outlook Desktop App
- Microsoft Outlook Web App
- Microsoft Outlook Mobile App
- Microsoft Teams
- Microsoft Office
- Microsoft OneDrive / SharePoint
- Thunderbird
- Mac Mail
- Mac Calendar
- iPhone / iPad Email
- iPhone / iPad Contacts
- iPhone / iPad Calendar
- Android email applications
- Android contacts applications
- Android calendar applications
- Any third-party email, contact, or calendar software.