I'm working on a Reponsive form
Currently when a user is editing a list Item, it will not allow another user to edit the same item. SharePoint throw an error. Is there away to notify the other user saying the item cannot be edited?
Something like a warning as soon as they edit the page and not when you save?
Thank you in Advance
In document libraries you have the check-in / check-out mechanism to do what you want. In regular lists there is no such option. So as described above a "checkout" workflow could be an option. The workflow marks the item as in editing mode and you prevent updates from other users either by form rules or by permissions.