---
title: "Logging into Teams without a license"
url: https://daily.dev/posts/logging-into-teams-without-a-license-e9rxtowlu
source_url: https://www.damirscorner.com/blog/posts/20260227-LoggingIntoTeamsWithoutALicense.html
type: article
source: "Damir's Corner"
published: 2026-05-31T07:46:02.750Z
updated: 2026-05-31T09:06:10.920Z
tags: ["active-directory"]
reading_time: 4
upvotes: 0
comments: 0
language: en
---

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# Logging into Teams without a license

**[Damir's Corner](https://daily.dev/sources/damirscorner)** · 4 min read · 0 upvotes · 0 comments

## Summary

When users without a Teams license try to access a customer's Teams tenant via Entra ID guest access, login can silently fail with AADSTS errors. The root cause is disabled service principals in Microsoft Entra. Three enterprise applications must be activated: Microsoft Teams Services, Office 365 SharePoint Online, and Microsoft Teams AuthSvc. Each can be re-enabled via the Entra admin center by toggling 'Enabled for users to sign-in' on the application's Properties page.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.damirscorner.com/blog/posts/20260227-LoggingIntoTeamsWithoutALicense.html>

---

Tags: [#active-directory](https://daily.dev/tags/active-directory)

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