Create Groups for projects or clients in Microsoft Outlook 2016

You can use Office 365 groups as shared collaboration spaces for projects or clients. Groups include a shared inbox, calendar, and cloud file storage, which can be accessed from both inside and outside your business. 

For more tips like this, check out the working remotely playlist at www.youtube.com/FoetronAcademy . Also, if you need any further assistance then you can raise a support ticket and get it addressed.