SMS MFA code expiration

Rex Menor 1

Hi Sir/Ma'am,

May I know the duration of SMS MFA code before it will expires in Office 365. Is this configurable on our side?

Thank you in advance.

Yuki Sun-MSFT 41,376 Reputation points Moderator

2020-10-27T05:19:49.797+00:00

Hi @Rex Menor ,

michev has shared a great official link in response to your question. Hopefully you can find that useful :) By the way, if you find his answer helpful, it would be appreciated if you can click Accept Answer under his post so that others who might encounter a similar question can benefit from your thread. Should there is any further concern on this, please feel free to post back.

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Yuki Sun-MSFT 41,376 Reputation points Moderator

2020-10-29T09:30:10.113+00:00

Hi @Rex Menor ,

Just checking in to see if you have had a chance to see the replies given. Any update would be appreciated. Thanks!

1 answer

Vasil Michev 119.5K Reputation points MVP Volunteer Moderator

2020-10-26T07:04:29.88+00:00

180 seconds, and not configurable. If you are using the MFA server instead, it's set to 300 seconds by default, and configurable. Details are here: https://learn.microsoft.com/en-us/azure/active-directory/authentication/multi-factor-authentication-faq#can-i-change-the-amount-of-time-my-users-have-to-enter-the-verification-code-from-a-text-message-before-the-system-times-out
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