https://community.appian.com/discussions/f/user-interface/2228/dear-all-is-it-possible-to-blocking-a-number-of-characters-in-a-text-areDear all, is it possible to blocking a number of characters in a text area size in a form? Thanks... OriginalPostID-102374 OriginalPostID-102374en-USTelligent Community 12https://community.appian.com/thread/7860?ContentTypeID=1Tue, 04 Mar 2014 15:32:57 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:472cea4c-7343-42ad-9582-ceb7f459e985Jennifer DurinaAlternatively, if you are using 7.4 you can use SAIL forms to achieve the validation directly on the screen without validating after form submission (available in Tempo and mobile).<br /><br />Masking is also not available on tempo or mobile.<br /><br /><a href="https://forum.appian.com/suite/wiki/74/SAIL_Recipes#Add_Custom_Validation_Rules">forum.appian.com/.../SAIL_Recipes</a><div style="clear:both;"></div>https://community.appian.com/thread/7856?ContentTypeID=1Tue, 04 Mar 2014 14:12:00 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5af26977-5073-424b-a64c-9f96d831ca31rakeshmHi . . There is one other way . <br />You can use masking for that particular text field . <br /><a href="https://forum.appian.com/suite/wiki/72/Text_Form_Component">forum.appian.com/.../Text_Form_Component</a><br />Hopefully it will help.<div style="clear:both;"></div>https://community.appian.com/thread/7854?ContentTypeID=1Tue, 04 Mar 2014 13:12:24 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9029edd8-7eec-4c58-9f71-5d26c1f7eec7harishnOne way is to check the character length after form submission, ie in the process, and return to same form with an error that character length is higher if required.<br />Second method, is to use java script validation. This will not work on mobile or tempo forms.<div style="clear:both;"></div>