When do Duo Mobile activation codes expire?

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When do Duo Mobile activation codes expire?

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The expiration of a Duo Mobile activation code depends on what method you used to generate the code. Note that when an activation link is clicked without completing the activation, the activation link will immediately expire. Activation links can only be used one time.


Manual activation and reactivation

When manually activating or reactivating Duo Mobile for a user’s device (see step 8 of “Manual Enrollment” here), you can configure the maximum expiration time of Duo Mobile activation codes. Codes can be configured to expire up to a maximum of 30 days (720 hours) after they are sent to the user.

Example from the Duo Admin Panel has an expiration set to 24 hours after generation

If a lengthier expiration time is attempted, the following error message will be displayed:
“Activation codes cannot be valid for more than 30 days.”
Duo Admin Panel error message reads Activation codes cannot be valid for more than 30 days.


Activation via the banner notification 

If you send the activation links via the banner notification at the top of the Users page that says “You have users who have not activated Duo Mobile. Click here to send them activation links,” then the link expiration is set to 24 hours, and cannot be changed. To adjust the expiration time, you must send the activation links using a different method.
Example of the Duo Admin Panel banner notification.
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