How To Make Attachments Mandatory In SharePoint Lists

We might come across scenarios where we must work with “attachments”. Ideally – SharePoint libraries are the answer, but due to various reasons we might still have to use lists rather than library. Now, there is no direct means to make an “Attachments” field mandatory in SharePoint Lists. But, we can very easily get it worked around with a little bit of tweaks here and there. Read on to know how!

source https://www.c-sharpcorner.com/article/how-to-make-attachments-mandatory-in-sharepoint-lists/