Error/Info example Here you can see an example on how to use the error and info helpers for form fields using Angular 1 as an example framework. Text PO line item reference Error: PO line item reference Must be 4 numeric digits in length. Must be present on the related PO document. GLN (Optional) Definition: GLN A GLN (Global Location Number) is a globally unique 13 digit numeric identifier that is used to access data about a location. More information about the GLN System Error: GLN Must be 13 numeric digits in length. Can only contain numbers. Here's the source for the form above: <form data-ts="Form" name="form"> <fieldset> <label> <span>Text</span> <input placeholder="Description" /> </label> </fieldset> <fieldset> <label ng-class="{'ts-error': form.poref.$invalid}"> <span>PO line item reference</span> <input name="poref" ng-model="model.poref" pattern="[0-9]{1,4}" ng-required /> </label> <dl class="ts-errors" ng-show="form.poref.$invalid"> <dt>Error: PO line item reference</dt> <dd>Must be 4 numeric digits in length.</dd> <dd>Must be present on the related PO document.</dd> </dl> </fieldset> <fieldset> <label ng-class="{'ts-error': form.gln.$invalid}"> <span>GLN (Optional)</span> <input name="gln" ng-model="model.gln" size="13" pattern="[0-9]{1,13}" /> </label> <dl class="ts-info" ng-hide="form.gln.$invalid"> <dt>Definition: GLN</dt> <dd> A GLN (Global Location Number) is a globally unique 13 digit numeric identifier that is used to access data about a location. </dd> <dd> <a href="http://en.wikipedia.org/wiki/Global_Location_Number"> More information about the GLN System </a> </dd> </dl> <dl class="ts-errors" ng-show="form.gln.$invalid"> <dt>Error: GLN</dt> <dd>Must be 13 numeric digits in length.</dd> <dd>Can only contain numbers.</dd> </dl> </fieldset> </form> If you find a bug or need a feature… Create GitHub Issue…