Organise your files and folders in SharePoint and initiate external sharing directly from Salesforce.
Set up sharing for Salesforce community users with Q!365.
Q!365 | External sharing the quick and easy way
Q!365 triggers the secure sharing process for you, and Microsoft takes care of the invitation email, including your personal message.
To help you keep track of who has contributed to which resources, Q!365 monitors the sharing as an activity on the contact as well as on the linked record itself.