Error Code Portal
MicrosoftMicrosoft Entra IDError code

AADSTS16001

UserAccountSelectionInvalid

Alternative forms: 16001

What does this code mean?

Code AADSTS16001 · An issue reported by Microsoft Entra ID.

Official explanation · Original text

UserAccountSelectionInvalid - You see this error if the user selects a tile that the session select logic has rejected. When triggered, this error allows the user to recover by picking from an updated list of tiles/sessions, or by choosing another account. This error can occur because of a code defect or race condition.

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