When Chrome users click the web upload button in OneDrive, they sometimes land on the wrong Microsoft 365 tenant. Instead of their company login page, they see a personal account or a different organization. This happens because Chrome caches authentication cookies and redirects based on the last active session. This article explains the root cause, … Read more
When you tap Upload in the OneDrive for Business app on an iPhone or iPad, the file picker sometimes opens a web browser that shows files from a different tenant than your work account. This happens because the iOS file picker uses a cached authentication session from another Microsoft 365 tenant, usually from a personal … Read more
When you tap the Upload button in an iOS app and choose OneDrive for Business, the browser opens your personal OneDrive or a different work tenant instead of the correct company account. This happens because iOS stores a cached browser session that points to the last-used Microsoft identity, and the web upload flow does not … Read more
When iOS users tap the upload button in Safari or another browser and see a OneDrive sign-in page for the wrong Microsoft 365 tenant, file uploads fail or go to the wrong organization. This happens because iOS Safari and many third-party browsers cache the authentication state from a previous session, especially when a user has … Read more
When you tap the web upload button in the OneDrive for Business app on Android, the browser sometimes opens the wrong Microsoft 365 tenant. Instead of your work or school account, you see a personal Microsoft account or a different organization’s login page. This happens because the Android WebView or the default browser caches authentication … Read more
When you tap the OneDrive for Business web upload link on an Android device, the browser may open your personal OneDrive or a different work tenant instead of the correct business account. This happens because Android does not always pass the authentication context correctly between the OneDrive app and the browser. This article explains why … Read more
Help desk teams supporting OneDrive for Business users often see error code 0x8004de40 when users try to sign in. The error appears as a pop-up that says “Something went wrong” or “We couldn’t sign you in.” This error blocks all OneDrive operations including file sync, sharing, and access to Files On-Demand. The root cause is … Read more
Help desk teams frequently encounter the OneDrive for Business sign-in error 0x8004de40, which repeatedly blocks user authentication even after re-entering credentials. This error typically occurs when the Microsoft 365 authentication token cache becomes corrupted, when the Windows Credential Manager stores outdated credentials, or when network proxy settings interfere with the sign-in flow. This article explains … Read more
Help desk teams often see the 0x8004de40 sign-in error in OneDrive after a user attempts to connect their work or school account. The error appears as a pop-up that says “Something went wrong” or “Your credentials are invalid,” even when the password was just reset. This error occurs because OneDrive cannot verify the user’s identity … Read more
The OneDrive for Business sign-in error 0x8004de40 prevents users from connecting to their Microsoft 365 account. This error appears repeatedly on managed devices even after the user enters correct credentials. The root cause is typically a corrupted token cache, a misconfigured Conditional Access policy, or a broken Windows credential entry for OneDrive. This article explains … Read more