All data lost after first sync in Outlook

[ThaliaFP]

I added the sync profile, two way sync chosen. At first, it showed all entries, then deleted them from the server. Now all my data is gone. How do I restore it?

Win 11 22H2 Caldavsync Version 4.4.1.0 mailbox.org Server: Version der Benutzeroberfläche: 7.10.6 Rev27 Server-Version: 7.10.6-Rev41 Outlook Pro Plus 2019 Version 16.0.16227.20280

report210423.txt SynchronizationReports.zip

[dXrayb]

I've met this problem too, now I use EVO to sync my calendar.

[aluxnimm]

It looks like you have the wrong resource url or some issues with the access rights/filesystem on the server maybe, because every put request fails with

CalDavSynchronizer.DataAccess.WebDavClientException: Response status code does not indicate success: '404' ('Not Found'). Message: There is nothing here, sorry. So the server returns a 404 not found immediatly after trying to upload an event. What does test or discover settings report in the sync profile? Data should never be gone permantly, because we never delete anything in Outloop permanently but move calendar entries only into the deleted item folder, and you can restore them from there.

[dXrayb]

It looks like you have the wrong resource url or some issues with the access rights/filesystem on the server maybe, because every put request fails with CalDavSynchronizer.DataAccess.WebDavClientException: Response status code does not indicate success: '404' ('Not Found'). Message: There is nothing here, sorry.

So the server returns a 404 not found immediatly after trying to upload an event.

What does test or discover settings report in the sync profile?

Data should never be gone permantly, because we never delete anything in Outloop permanently but move calendar entries only into the deleted item folder, and you can restore them from there.

But when you restore them, CalDavSynchronizer will remove them again.