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In step 1, you will need to edit the secret file of the hardware tokens with a text editor and assign all of your tokens to your users by adding the user's UPN against the token's serial number, one by one
In step 2, you will need to upload the secret file of the hardware tokens onto Azure AD
In step 3, you will need to activate tokens by providing a verification code from the token, one by one.
Click here for detailed instructions on how to set up pre-programmed hardware tokens with Azure AD
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