I'm trying to sync my 3CX Contacts to a Public Folder created in Office 365 containing contacts for my organization. I can't find any documentation other than the following article and two subsequent articles: https://www.3cx.com/blog/docs/sync-ms-exchange-contacts/ I've completed all of those steps, but no contacts are coming over. From the 3CX Phone System Manager > Contacts, I click Office 365. Here I have the OWA link for the server: https://outlook.office365.com/owa/mycompanyname.com/ [using my email domain instead of mycompanyname.com] Impersonated user account information is entered. Then under Configure Public Folders, I click Add Folder. Under Specify Public Folders to Synchronize, I click Add Folder. Now what? What is it looking for? I tried simply the name of the Shared Folder (Master Contact List) and I tried the full path (\Spectrum Public Folders\Master Contact List). No go. Nothing in the logs. Nothing indicating it's doing anything. What am I missing?