Hello
There is a bug in the Outlook app for android where editing a calendar item on the phone won't sync properly to other devices (subject, details, location at least), while creating new ones with the phone works properly and syncing appointments created with the PC also work properly..
I have verified this on a Samsung, Sony and Huawei device with 2 seperate email accounts and the issue is surely a bug.. Where/whom to tell?
(only tested with the latest app version 2.2.206 (279) with exchange server 2013.