4,321 votesthinking about it · AdminMicrosoft 365 Groups Feedback (Product Owner, Microsoft Office 365) responded
Thanks to all of you for your feedback on this item. We know that folder creation is still a high priority request from our customers. Please continue to provide your feedback as we assess the priority in relation to other initiatives the Outlook teams have committed. Thank you!
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Replace your folders with categories. Folders are physical entities and limited to a single category.
Categories serve as virtual folders and moreover, any entity instance (e.g. a contact) can have an unlimited number of categories. :-) Imagine, a single list for Contacts but access is by category :-)