Hook um_submit_form_errors_hook_login

um_submit_form_errors_hook_login.php

<?php

/**
 * Hook: um_submit_form_errors_hook_login
 *
 * Type: action
 *
 * Description: Fires on the Login Form submit validation.
 *
 * @example https://github.com/ultimatemember/ultimatemember/blob/master/includes/core/um-actions-form.php#L222
 * @link    https://docs.ultimatemember.com/article/1279-umsubmitformerrorshooklogin
 *
 * @package um\core
 * @see     um_submit_form_errors_hook()
 * @since   2.0
 * @version 3.0
 *
 * @param array $args Form arguments.
 */
function my_submit_form_errors_hook_login( $args ) {
	// your code here.
}
add_action( 'um_submit_form_errors_hook_login', 'my_submit_form_errors_hook_login', 10, 1 );