WebDAV Sync Documentation

Onedrive does not support WebDav，You can use Alist to mount onedrive.

But，Suggest using Amazon or other vendors' S3 protocol.

Actually, I have tried to add OneDrive as my network location in my PC using WebDAV protocol and it's working, but when I tried to configure OneDrive WebDAV in SiYuan, it gave me error 401 Unauthorized Error

Eventually, I'm using other cloud service and the sync is working fine now

Thanks

Here's a step by step tutorial for setting up WebDAV sync with Koofr cloud storage: Set up a cloud sync to Koofr in SiYuan using WebDAV - Koofr blog

You can use it as a rough guide for other services, just skip the app-generated password section if your chosen storage vendor doesn't offer something similar.