Error Code Portal
MicrosoftMicrosoft Entra IDError code

AADSTS50146

MissingCustomSigningKey

Alternative forms: 50146

What does this code mean?

Code AADSTS50146 · An issue reported by Microsoft Entra ID.

Official explanation · Original text

MissingCustomSigningKey - This app is required to be configured with an app-specific signing key. It's either not configured with one, or the key has expired or isn't yet valid. Please contact the owner of the application.

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