Sign-in & Login Problems

How to Fix Office 365 Error 50058 on iPad When Signing In

Khadija Khan Oct 10, 2026 869 views

Question details

The user is unable to sign in to Microsoft 365 apps on an iPad, receiving Error 50058 before a password prompt appears, despite the account working in a web browser.

How to Fix Office 365 Error 50058 When Signing In on iPad

Product: Microsoft 365
Device & OS: iPad
Scenario: Attempting to log into Microsoft 365 iPad applications (like PowerPoint or Word) using a private-domain email address.
Observed behavior: The application throws Error 50058 immediately after entering the email address, failing to display the password prompt and blocking access to the app.

Before you start

Verify that your Microsoft account credentials are correct by signing in through Safari or another web browser on your iPad, and ensure you have a stable internet connection.

Solution 1Recommended

Create and Sign In with an Outlook.com Alias

Bypass the silent sign-in error caused by private-domain addresses by using a native Outlook.com alias to log into your Microsoft account.

Error 50058 often indicates that the application is attempting a silent sign-in but failing due to issues with private-domain email recognition. Creating an Outlook.com alias gives the app a native Microsoft address to authenticate against.

Access Microsoft Account Settings

Open a web browser on your iPad, go to the Microsoft account website, and log in with your current email address.

Add an Email Alias

Navigate to 'Your info' and select 'Edit account info'. Click on 'Add email' and choose to create a new Outlook.com email address as an alias.

Sign In with the New Alias

Open the Microsoft 365 or PowerPoint app on your iPad. Enter the newly created Outlook.com alias instead of your private-domain address to prompt the password screen and sign in.

Create and Sign In with an Outlook.com Alias

Alias functionality: Adding an alias does not delete your original email; it simply creates an additional login address tied to the exact same Microsoft account and subscriptions.

Solution 2

Install Individual Microsoft Apps

Resolve sign-in conflicts caused by the bundled Microsoft 365 Office app by installing standalone applications.

Solution 3

Clear App Cache by Signing Out and Restarting

Clear temporary glitches and stuck authentication tokens that might trigger the silent sign-in error.

Free Microsoft Office alternative

Try WPS Office for iPad to Bypass Login Errors

Tired of dealing with frustrating Microsoft 365 sign-in errors like 50058? WPS Office is a powerful, lightweight, and free alternative that lets you view, edit, and create documents on your iPad without mandatory complex account setups.

1. Download the App: Search for WPS Office in the Apple App Store and download it to your iPad for free.
2. Open Your Files: Launch WPS Office and directly open your existing DOCX, XLSX, or PPTX files from your local storage or cloud.
3. Start Editing Instantly: Begin editing and formatting your documents immediately without dealing with frustrating login errors.

Highly compatible with Microsoft Office formats like DOCX, XLSX, and PPTX.No mandatory subscription or complex sign-in required to start editing files.All-in-one suite to manage documents, spreadsheets, and presentations effortlessly.Lightweight and optimized for fast performance on iPadOS.

microsoft office alternative - wps office

Frequently Asked Questions

What does Error 50058 mean in Office 365?

Error 50058 typically occurs when a Microsoft application attempts a silent sign-in but fails. This often happens when the authentication server does not properly recognize the domain address, blocking the password prompt from appearing.

Why does my Microsoft account work in Safari but not in the iPad app?

Web browsers use different authentication cookies and protocols compared to native iOS applications. The native iPad app might struggle with your private-domain email configuration, triggering Error 50058, while the web browser handles the redirect seamlessly.

Will creating an Outlook.com alias delete my original email address?

No. Adding an alias simply creates an additional login address connected to the same Microsoft account. You will retain full access to your original private-domain address, files, and subscriptions.

Login & Account Issues