Hello Experts,
I have a custom list where you can create item and also attach some doc or image as an attachment to that item. Once you create item you can attach more items. I need to make it one attachment only. SO user will be able to create an item and attach one document only, how can I stop user from having second attachment with the same item?
Its a SharePoint Online custom list but I am sure its the same as server environment.
Thanks
