The benefit of using an OTP is it's more secure than a static password. An OTP token is typically generated by a mobile application that displays a number. The number changes every 30 or 60 seconds, depending on how the token is configured.
When the user logs into AEM, they enter their user name, password, and OTP value.
To read this development article, click https://helpx.adobe.com/experience-manager/using/twofactor.html.
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