Work out which limitations are a showstopper for you, and which capabilities you need the most, and then make your decision based on that. If the public folders have a complex folder hierarchy that needs to be preserved, then you will basically lose that hierarchy due to the lack of sub-folders in Groups.Īs it stands right now, the decision to go with Groups or shared mailboxes is a case of “it depends”. The sub-folders capability is also a problem for anyone considering migrating public folders to Groups. Although I prefer to recommend a proper ticketing/job management system instead, I understand that simpler scenarios don’t warrant setting up a whole separate system and that a shared mailbox with some sub-folders is quite sufficient. It’s quite common for teams that use a shared mailbox as an inbound communication channel to user sub-folder to sort or file away items that have been actioned. There is some demand for Group mailboxes to have sub-folders, as shown in the comments on this Uservoice suggestion.
Office 365 Groups have additional features that shared mailboxes do not.