syncany webdav with zimbra briefcase

[EdG91]

Hello,
This is surely not an issue, but a missunderstanding from myself about the way syncany works with webdav...
I set syncany in webdav with a zimbra briefcase (url like : https://zimbra.my-domain.fr/dav/zimbrauser/BriefcaseName/syncany
I am using syncany on windows...
The folder i well created by syncany, and .syingnore file + .syncany folder is created on the local folder.
On the zimbra server, a syncany folder is created with a folder tree (actions, databases, mulitchuncks, temporary, transactions) and files (master, syncany)
If I add files/directories in my local folder, I do not see where these files/directory are sync in the zimbra briefcase... They do not appear.

How to use webdav to sync files with a zimbra briefcase and a local folder with syncany ?
Best Regards,