See: https://calderaforms.com/doc/validation-events/

cf-validation-change-result.js

jQuery( document ).ready( function ($ ) {
	$( document ).on(  'cf.validate.fieldError', function( event, obj ){
		//make field fld123456 always validate false
		if( 'fld123456' === obj.el.data( 'field' ) ){
			obj.inst.validationResult = false;
		}
	});

});

cf-validation-events.js

jQuery( document ).ready( function ( $ ) {
  	/**Run JavasScript when a Caldera Forms field is unsuccessfully validated!**/
	$( document ).on(  'cf.validate.fieldError', function( event, obj ){
	
		//make valid
		obj.inst.validationResult = true;
	});

  /** Run JavasScript when a Caldera Forms field is successfully validated!**/
	$( document ).on(  'cf.validate.fieldSuccess', function( event, obj ){

		///make invalid
		obj.inst.validationResult = false;

	});

  /** Run JavasScript when a Caldera Forms form is successfully validated!**/
	$( document ).on(  'cf.validate.FormSuccess', function( event, obj ){

		///make invalid
		obj.inst.validationResult = false;

	});

  /**Run JavasScript when a Caldera Forms form is unsuccessfully validated!**/
	$( document ).on(  'cf.validate.FormError', function( event, obj ){
		//make valid
		obj.inst.validationResult = true;

	});

});