SecurityOct 8, 2026

Pre-authenticated (tempauth) URLs are retiring: move to Microsoft Entra ID tokens before April 1, 2027

Starting April 1, 2027, affected Microsoft Graph file APIs will no longer return pre-authenticated URLs. Applications using these APIs must authenticate requests with Microsoft Entra ID access tokens. The post Pre-authenticated (tempauth) URLs are retiring: move to Microsoft Entra ID tokens before April 1, 2027 appear…

Published by Microsoft 365 Developer BlogOpen original story

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