https://community.appian.com/discussions/f/general/17540/validation-in-an-editable-gridI copied an example from the Appian documentation and it has the same behaviour as my grid. If you remove the value from the first column of the grid and hit the submit button it will not highlight the grid cell in red. If any of the other columns thaten-USTelligent Community 12https://community.appian.com/thread/69113?ContentTypeID=1Fri, 30 Aug 2019 12:18:26 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:71fa4c5e-cb2a-46a6-b9ab-a42161afc0a4helmuta<p>I tried removing the row header but that need not change the behavior.&nbsp; As a workaround I added a readonly column the size of an icon which works.&nbsp; I have also raised a support ticket with Appian.&nbsp; Thank you for your response.</p><div style="clear:both;"></div>https://community.appian.com/thread/69106?ContentTypeID=1Fri, 30 Aug 2019 05:02:57 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:48fe87dd-9d9c-4d10-ac68-c72c0303e46ebhanuprakash1303<p>Hi <u><span style="color:#0066cc;">helmuta&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span class="post-date"><a href="/discussions/f/general/17540/validation-in-an-editable-grid"><span class="ui-agodate ui-tip "></span></a></span></p> <p>I also face same issue. it is very weird but<strong> when I remove the &quot;rowHeader: 1&quot; in the code. it is working fine.</strong> rowHeader is reperesnts&nbsp;</p> <p></p> <p>&quot;<strong>&nbsp;Index of the column to be used as the row header.</strong> Screen readers will announce the value in each row header when navigating to other cells within that row. Used only for accessibility; produces no visible change.&quot; . we have to raise the support ticket for this. why it is working like this</p> <p></p> <p>Hope it is help for you</p> <p></p> <p>Regards,</p> <p>Bhanu</p><div style="clear:both;"></div>