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Microsoft Entra Blog
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Service principal required for Microsoft Entra ID

xushirling's avatar
xushirling
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Apr 23, 2025

Starting March 2026, Microsoft Entra ID will no longer support SP-less authentication behavior.

Starting March 31, 2026, Microsoft Entra ID will no longer support service principal-less authentication behavior. This change aims to strengthen security in Microsoft Entra ID by ensuring that all a...
Updated Apr 22, 2025
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Microsoft Entra Blog
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TonyRedmond's avatar
TonyRedmond
MVP
Apr 23, 2025

This is the same announcement that came out a couple of weeks ago?

https://office365itpros.com/2025/04/15/service-principal-less-auth/