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Renew: If you think that the key is compromised, then you can regenerate the key anytime by clicking on the Renew button. Note that when you renew any key, all the applications that access the function would no longer work and would get a 401 Unauthorized status code error.

Revoke: You can delete the key if it is no longer used in any of the applications.

Key type

When should I use?

Is it revocable (can be deleted)?

Renew

Comments

Master key

When the Authorization level is Admin

No

Yes

You can use master key for any function within the function app irrespective of the authorization level configured

Host key

When the Authorization level is Function

Yes

Yes

You can use the host key for all ...

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