Error Code Portal
MicrosoftMicrosoft Entra IDError code

AADSTS50070

SignoutUnknownSessionIdentifier

Alternative forms: 50070

What does this code mean?

Code AADSTS50070 · An issue reported by Microsoft Entra ID.

Official explanation · Original text

SignoutUnknownSessionIdentifier - Sign out has failed. The sign out request specified a name identifier that didn't match the existing session(s).

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Microsoft Entra authentication and authorization error codes ↗

Creator: Microsoft Corporation and contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted official AADSTS table; Markdown stripped; short English error name selected; original Korean product context added. Official general diagnostic guide is distinguished from code-specific troubleshooting. Documentation license explicitly granted by README Legal Notices; repository LICENSE currently contains MIT terms, also retained as evidence.

Source details · Original licenses and notices