https://community.appian.com/discussions/f/user-interface/40369/how-can-i-validate-empty-textfieldIn my application maker 1 &amp;maker 2 both users submit data, if any difference between both users reviewer return the task to particular person now we are getting unmatched fileds and we are highlighting also, like this if maker 1 give HOGN_DDA makeren-USTelligent Community 12https://community.appian.com/thread/154406?ContentTypeID=1Mon, 27 Apr 2026 06:54:26 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:0010230f-d84f-4ab8-b89d-d72bcf4dd128Shubham Aware[quote userid="295657" url="~/discussions/f/user-interface/40369/how-can-i-validate-empty-textfield"]as per my knowledge we can&#39;t highlight filed without value&nbsp;&nbsp;[/quote] <p>You cannot apply validations on null/empty values since validation expressions don&#39;t trigger on empty fields. <br />The closest workaround is to use the required parameter along with requiredMessage for a custom message, which highlights the empty field with a red border(use a combination of the required and validations parameters together to mimic the highlight effect on an empty field.)</p><div style="clear:both;"></div>