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Fix Microsoft 365 Passkey Registration Failure on macOS
Question details
Users are unable to successfully register a passkey for Microsoft 365 authentication on a Mac.
- Product
- Microsoft 365
- Device & OS
- macOS Ventura
- Scenario
- Adding a passkey to a Microsoft 365 account for secure login.
- Observed behavior
- The passkey registration process fails immediately after the device name is saved, and this error occurs consistently across Firefox, Safari, and Edge.
Verify that your macOS Ventura system is fully updated to the latest available patch, as Apple frequently releases security and SSO updates that may address known passkey bugs.
Escalate Known Platform SSO Passkey Issue to IT Admin
This error is tied to a known macOS platform SSO issue that requires organizational administrator intervention and a potential Microsoft support request.
Because the passkey registration failure happens across all major browsers (Safari, Edge, Firefox), the issue lies at the system or tenant level rather than within the browser itself.
Microsoft provides specific troubleshooting guidance for macOS platform SSO passkey configurations which must be reviewed by the tenant administrator in Microsoft Entra ID.
Take note of the exact error code or message that appears on your screen immediately after saving the device name during the passkey registration process.
Reach out to your IT department or organization admin and inform them of the macOS platform SSO passkey issue.
Ask your administrator to log into the Microsoft 365 Admin Center and open an official support request regarding macOS Ventura passkey failures so Microsoft can investigate the tenant configuration.
Need a Reliable Alternative? Try WPS Office for Mac
While you wait for your IT team to resolve Microsoft 365 authentication and passkey issues, you can continue working without interruption. WPS Office is a lightweight, highly compatible free alternative that works perfectly on macOS without requiring complex cloud logins.
- 1. Download and Install: Download WPS Office for Mac from the official website and follow the simple installation prompt.
- 2. Open Existing Files: Launch WPS Office and directly open your existing Microsoft Office files without needing to authenticate a cloud account.
- 3. Edit and Save: Edit your documents smoothly and save them in their original Microsoft formats to easily share with your colleagues.
Frequently Asked Questions
Why does Microsoft 365 passkey registration fail specifically on macOS Ventura?
This is often related to a known platform Single Sign-On (SSO) issue within macOS Ventura, or an incompatibility between the local Apple passkey environment and your organization's Microsoft Entra ID policies.
Will changing my default browser fix the passkey error?
No. Because the issue is rooted in the macOS system-level SSO handling, the passkey registration will consistently fail across all browsers, including Safari, Edge, and Firefox.
Can I bypass the passkey requirement to access Microsoft 365?
This depends on your organization's Conditional Access policies. If your IT department mandates passkeys or strong MFA, you must use an alternative approved authentication method (like the Microsoft Authenticator app) until the macOS passkey issue is resolved.
