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Rotating an app registration secret without downtime

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Rotating an app registration secret without downtime

How to rotate an Entra app registration secret or certificate with zero outage: find every consumer, add the new credential alongside the old, switch, remove.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/entra-id-app-registration-secret-rotation

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01

How often should client secrets be rotated?

Microsoft caps secret lifetime at two years; many organisations enforce one year or less via an application authentication method policy. The better fix is to replace secrets with certificates or managed identities so r…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/entra-id-app-registration-secret-rotation

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02

How do I rotate a secret without downtime?

Add a second secret or certificate to the app registration, update every consumer to use it, verify in sign-in logs that the old credential is no longer used, then remove the old one. Entra lists which credential each t…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/entra-id-app-registration-secret-rotation

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03

Can I get alerted before an app secret expires?

Not natively in the portal beyond the expiry column. A scheduled script or Logic App querying Graph for applications with credentials expiring in 30 days and posting to Teams is the standard pattern; several community t…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/entra-id-app-registration-secret-rotation

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