There are 2 ways you can set up pre-programmed hardware tokens with Azure AD:
Microsoft Entra ID portal provides a basic facility that allows you to enroll the pre-programmed hardware tokens. To set up hardware tokens using the Entra ID portal, you will need to go through 3 steps
Once you have downloaded the secret file of your tokens, you now need to edit it 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
Next, you need to upload the modified secret file on to Entra ID
Finally, 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
As you will see, the facility provided by Azure AD is very basic and not flexible. It does not provide functions for you to quickly assign only one token to a user or to reassign a token, for instance. If you have a small number of hardware tokens to manage, then it is OK to use the Azure AD portal. However, if you have a large number of hardware tokens to manage, then we would recommend the SafeID Token Service
SafeID Token Service provides a Web-based GUI console that allows customers to manage the full life cycle of the SafeID hardware tokens by simply pointing and clicking. You can assign, activate, deactivate, unassign, delete and replace a token, etc with one single click.
Click here for detailed instructions on how to manage hardware tokens with SafeID Token Service