A Microsoft file hosting and synchronization service.
Hello, I have the same issue. Can't open/ sync/ or work on shared folders via file explorer.
I stumbled upon a video that claims shared folders (with you) can no longer be worked on directly from your file explorer unless you have a business subscription. I looked into upgrading my personal family plan ($99/ yr), but there isn't an option. It appears you have to create a separate business subscription at $12/ mo per user. So essentially one has to pay for a personal/ family as well as a business account just for this feature.
I would really appreciate a Microsoft rep to chime in, as it's causing significant hardship for my business right now. Thank you.