In addition to generating a verification code that you can manually enter, Adobe Authenticator also sends you a notification on your device. To sign in, simply tap Approve.
When you enter your Adobe ID on the sign-in screen, Adobe Authenticator sends a notification to your device, prompting you to approve the sign-in.
Open the notification, and you can see the options to either approve or decline the sign-in authorization.
To sign in, tap Approve.