Solved Company Phonebook Sync subfolders

[David Schumann]

Hello,
I have Microsoft 365 Integration enabled and am using a shares Mailbox to sync the company contacts. This has been working for us.
However, I have an external source of contacts which are imported to a subfolder of Contacts in that shared Mailbox. The Contacts in the subfolder do not synchronize with 3CX. Seeing I couldn't find much to this problem, I assume that this works for others, but not for me. What am I doing wrong?

Thanks in advance for any help

 

[StefanW]

This will not work as we only import the well known folders.

https://docs.microsoft.com/en-us/do...ata.wellknownfoldername?view=exchange-ews-api

in brief - only folders which are created at creation of a mailbox.