Can I resurrect this thread? I have exactly the same problem, and I have even just moved from S7 -> S9. I use Hotmail/Outlook.com as my central calendar & contacts store.
However, this isn't an issue with Outlook android App. I am using the native Mail, Contacts & Calendar apps from Samsung. I've tried the 'clear' option with Samsung Mail. No change.
Bottom line - they worked great on the S7, not on the S9. I've installed the Outlook app just so I can see my diary (syncs fine), but I would prefer not to use it - its clunky. And it doesnt sync my contacts!
When I open Calendar I dont even see the Hotmail calendar as an option, just the unwanted Samsung & Google standard choices!! In Contacts, I see the Hotmail account listed (but showing 0 contacts).
In Settings>Accounts I am all set up correctly to sync calendar & contacts via "MSFT Exchange ActiveSync", But I get the exact same error messages as gebrown. See below:
UPDATE:
Weird though this sounds, the problem I had with syncing my outlook.com data to the native Android Calendar & Contacts app has disappeared.
I did remove & reinstall my MSFT ActiveSync account on the phone. I had also tried another of the fixes shown in this thread - to set up my outlook.com connection using the Gmail Exchange setting, but they didn't get Calendar & Contacts working.
I'm convinced this is a tech problem because I know how to set this all up properly - It worked like a dream with my new Tab S3 tablet just last week (Android 8/Calendar 4.4.04.7/Contacts 3.8.25.22). And it worked on my old phone - Galaxy S7 Edge. The issue seems to be with either Android 9 and/or the Galaxy S9 set up. Given the frequency of this problem on the web, I suspect it is an ongoing Android issue, maybe linked to the fact that you're forced to have Google & Samsung trying to sync with their accounts before you have the chance to say "No don't do that, just use outlook.com". I had also had to install MSFT's Outlook app just to see my calendar (before it was fixed - uninstalled now).
The situation with my problem was:
- Under settings>Accounts, only ActiveSync was set to sync contacts and calendar. The other defaults (Google & Samsung) were turned off.
- There were some other IMAP mail accounts which worked fine, as did my outlook.com email (suggesting the ActiveSync connection was correctly made).
- In the Contacts app, I could see the ActiveSync connection, it just showed "0" contacts.
- In the Calendar app, I couldn't even see the ActiveSync account/calendars. It only showed the default Google & Samsung (even though the accounts were set not to sync in Settings/Accounts - I guess I will have to live with this). The various Google/Samsung calendars were un-ticked (ie don't show)
- FYI, I had set up my new Galaxy S9 using Samsung's "SmartSwitch". Maybe this did something funny - though of course Contacts 7 Calendar worked properly on my old S7 Edge??
First to sync were my contacts - this happened
before I deleted/reset my ActiveSync account. All of a sudden the message that "Sync is currently experiencing problems. It will be back shortly", disappeared from Contacts, and just stayed with Calendar. I had stopped & cleared data from Contacts, and also tried some 3rd party apps (none any good because they simply piggy-back the data in the native android app, rather than set up new syncs themselves) Something in that cleared whatever was blocking.
Then after I stopped/cleared data in Calendar, and deleted/reconnected my ActiveSync account, I could at least see my outlook.com calendars (and yes, I had ticked them to show in the app). However, nothing was showing...at least initially. I pressed sync several times (both in Settings>Accounts>ActiveSync, and within Calendar. First sign of life was a test event I set up on the S9 actually came through to outlook.com in the cloud & from there to my other devices. Nothing in the other direction though.
I went to bed, and in the morning the calendar had synched, and is working as it should!!!
Digital technology shouldn't work like this, but it did for me. It EVENTUALLY worked exactly as it is meant to - no need to manually import non-synched copies, no need to set up outlook.com using Gmail's Exchange connection. I've posted my story hoping it will help others with the same frustration.
I would love to see that as an 'official instruction' from Google - your email will sync immediately, contacts will start after 3 hours, and calendars only when you are asleep!!!