How to add your new post type to WordPress category and tag archives
function my_cptui_add_post_types_to_archives( $query ) { // We do not want unintended consequences. if ( is_admin() || ! $query->is_main_query() ) { return; } if ( is_category() || is_tag() && empty( $query->query_vars[‘suppress_filters’] ) ) { $cptui_post_types = cptui_get_post_type_slugs(); $query->set( ‘post_type’, array_merge( array( ‘post’ ), $cptui_post_types ) ); } } add_filter( ‘pre_get_posts’, ‘my_cptui_add_post_types_to_archives’ );