Hi,
I'm having a strange problem with EWS managed API 2.0 used with Exchange 2013 on an Outlook 2013, the location property is set but not visible inside the Outlook Appointment. In fact, the location appears in Appointment tooltip but not inside the Appointment form.
To reproduce the problem :
1. Create the Appointment via EWS managed API with a location => Appointment created with Outlook with the location
2. Remove location inside Outlook
3. Add Location to Appointment via EWS managed API
4. Location visible inside Appointment tooltip but not in the form.
5. Just save the Appointment in Outlook
6. No more location inside tooltip
The problem doesn't occur in OWA at all.
Can you please try to reproduce it ?