To assign a Microsoft 365 Business Central Device license to a device, you need to create a Dynamics 365 Business Central Device Users group and add the device to the group. Once the device is added to the group, any user assigned to the group can sign in to the device and use the license. If the device is not available in the Assign licenses section of the Microsoft 365 admin center, it may be because the device has not been added to the Dynamics 365 Business Central Device Users group. Please follow the steps outlined in the "To create the Dynamics 365 Business Central Device Users group" and "To add members to the group" sections of the "Licensing in Dynamics 365 Business Central" article to create the group and add the device.
Note that a device user cannot be the first user to sign in. An Administrator, Full User, or External Accountant must be the first to sign in to set up Business Central.
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