I have been succesfully syncing my Outlook 365 Contacts and Calendar with my iPhone via iTunes for several years without any issues. It would work in both directions.
However just recently I noticed that the contacts have stopped syncing. The calender is syncing fine.
I have ensured that the check mark to sync contacts with Outlook is still selected on the iTunes info page.
I have tried toggling this off and back on several times but it has made no difference.
Any suggestions on how I may be able to resolve this would be very welcome.
Thanks for your time.
I am using:
Windows 10 x64 (1909)
Office 365 Version 1911 (Build 12228.20364)
iPhone XR iOS 13.2.3