@Ross McEleny Thanks for posting in our Q&A.
For this issue, it is not related to windows 365 business. This issue seems not supported in our Q&A forum. Given this situation, it is suggested to submit a support request in Microsoft CDX portal to get more accurate help. Here is the support link:
https://cdx.transform.microsoft.com/help/faq
Thanks for your understanding and hope everything goes well with you.
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