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Dear @Jim Grant,
Thank you for posting your question in the Microsoft Q&A forum.
I understand your situation since you want to support the external staff. However, regarding your idea of adding personal email accounts as guest users and then assigning Microsoft 365 licenses: this approach isn’t recommended or supported.
Although the admin center may technically allow a license to be toggled on for a guest (B2B) user, guest accounts are intended only for collaboration. They can’t reliably use Microsoft 365 licenses for services like Outlook mailboxes, OneDrive, or Office desktop app activation. For reference: Assign External Users full Office 365 Licenses? and Add and manage B2B collaboration users in the Microsoft Entra admin center
In this case, I recommend you create standard cloud‑only users (for example, using the onmicrosoft.com domain), assign the Microsoft 365 licenses to those users, and then have them sign in on the laptops or tablets you provide. For more information and instruction, please refer to Add users and assign licenses in Microsoft 365
Note: Their personal email addresses can still be used as contact or recovery emails, but the license itself must be assigned to an internal tenant user.
This ensures the licenses work correctly, keeps your setup compliant, and allows Microsoft to fully support the configuration if you ever need assistance.
I agree with you that this would be a very valuable and important feature, especially for organizations like yours that support external staff and partner teams. Therefore, the best way to influence future product improvements is to share this directly with the Microsoft product team. Microsoft actively reviews customer feedback when prioritizing new features and enhancements, especially when multiple customers raise similar requests. You can submit your idea through the Microsoft Feedback Portal, visit https://feedbackportal.microsoft.com
Note: As Microsoft Community moderators, please understand that we are not involved in product design decisions and do not have direct access to the development roadmap, we want to assure you that your feedback has been acknowledged and is valued.
I hope the information shared helps point you in the right direction. If you have any questions or need further clarification, please feel free to reach out.
The first response may not always resolve the issue right away, but with your help and more details, we can work toward a solution.
Thank you for your patience and understanding. I'm looking forward for your reply.
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