How to Make Attachments Mandatory in SharePoint List?

Requirement: In a SharePoint list, make attachment required field!

Make attachments mandatory in the SharePoint list:

While creating a Document library with metadata columns is one option, the requirement is only to make the attachments mandatory in SharePoint list forms. To make attachment mandatory in the SharePoint list we can use simple JavaScript. Add content editor or script editor web part on “NewForm.aspx” just below SharePoint list form web part, and then place the below code in it!

JavaScript to make attachments mandatory:
Use this Javascript in script editor web part in classic experience!

<script type="text/javascript" language="javascript">

function PreSaveAction() {
if (document.getElementById('idAttachmentsRow').style.display=='none' )
     alert('Attachment is Mandatory! Please attach Documents.');
     return false ;
else {  return true;  }

and here is the script in action:

sharepoint 2013 list attachment mandatory

Salaudeen Rajack

Salaudeen Rajack is a SharePoint Architect with Two decades of SharePoint Experience. He loves sharing his knowledge and experiences with the SharePoint community, through his real-world articles!

3 thoughts on “How to Make Attachments Mandatory in SharePoint List?

  • May 28, 2020 at 4:02 PM

    Form Web Parts > Default New Form > Add a Web Part > Media and Content folder > Script Editor > paste javascript there. Thanks for this!

  • July 23, 2018 at 9:07 PM

    I’ve been testing this solution all day and can’t get it to function. By loading js into a CEWP, I have been able to test simple things like getting “Hello World” to display on load. But when I switch to the above js code and attempt to submit my form without an attachment, it allows me to without the error message. What might I be missing? Thanks!


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