SharePoint OneDrive file sync issues when users open the same file

Our solution is to map a drive to the SharePoint share. We have been doing this for a week now. This gives us the ability to lock files like normal. This way you are accessing the files directly and not accessing a synced copy that is only on your pc. One drive is now only being used for syncing your desktop, documents and pictures. Using an office 365 account with the desktop software as part of your account allows for simultaneous file use if auto save is turned on, otherwise if you are in the file, it's read only for everyone else.

The two biggest problems we are having now (which is better than not locking the files by far), is making your connection persistant for more than a week-long and file path names have to be under a certain length. 259-219 characters/letters total.

The trick I've discovered so far for the persistence is using IE and make sure you use check the box to keep you signed in. Since we are on a domain and user names are synced with the cloud, we can have the trusted sites use your pc credentials. Mapping a drive you don't click the "use different creds" this way.

Google how to map SharePoint as a network Drive for more instructions. The following is a great troubleshooter. And of course the want you to sync vs map it directly.

https://support.office.com/en-us/article/troubleshoot-mapped-network-drives-that-connect-to-sharepoint-online-ef399c67-4578-4c3a-adbe-0b489084eabe