Redirect a user after a successful community events submission.

gistfile1.php

<?php

/**
 * This actually does the redirect. If an event was submitted, and we're about
 * to reload the submission page (with a message instead of a form), this will
 * redirect to the home page.
 *
 * @param WP $wp
 * @return void
 */
function tribe_gist_redirect_after_community_submission( $wp ) {
  if ( isset($wp->query_vars[WP_Router::QUERY_VAR]) && $wp->query_vars[WP_Router::QUERY_VAR] == 'ce-add-route' && !empty($_POST) ) {
		wp_safe_redirect(home_url()); // you can change this URL to whatever you want
		exit();
	}
}

/**
 * This is where we check that an event was submitted or updated. It's a filter,
 * not an action, so make sure to pass through the argument.
 *
 * @param array $messages
 * @return array
 */
function tribe_gist_check_for_community_submission( $messages ) {
	if ( is_array($messages) && !empty($messages) ) {
		$first_message = reset($messages);
		if ( $first_message['type'] == 'updated' ) {
			add_action( 'parse_request', 'tribe_gist_redirect_after_community_submission', 11, 1 );
		}
	}
	return $messages;
}
add_filter( 'tribe_community_events_form_errors', 'tribe_gist_check_for_community_submission', 10, 1 );

This now exists: https://theeventscalendar.com/knowledgebase/redirect-to-different-url-after-event-submission/