You need to use dedicated wc_print_notices()
function, that displays Woocommerce notices. This function is hooked or used in woocommerce templates for that purpose.
To make the WooCommerce notice actives in the page of your short code you need to add inside your shortcode this wc_print_notices()
function.
I have reproduced a similar Shortcode as yours below (for testing purpose) where woocommerce notices are printed:
if( !function_exists('custom_my_products') ) {
function custom_my_products( $atts ) {
// Shortcode Attributes
$atts = shortcode_atts( array( 'ppp' => '12', ), $atts, 'my_products' );
ob_start();
// HERE we print the notices
wc_print_notices();
$query = new WP_Query( array(
'post_type' => 'product',
'posts_per_page' => $atts['ppp'],
) );
if ( $query->have_posts() ) :
while ( $query->have_posts() ) :
$query->the_post();
global $product;
?>
<div style="border-bottom:thin dashed black;margin-bottom:15px;">
<h2><?php the_title(); ?> <span><?php echo $product->get_price_html();?></span></h2>
<p><?php the_excerpt();?></p>
<?php
if( $product->is_type( 'simple' ) )
woocommerce_simple_add_to_cart();
endwhile;
endif;
woocommerce_reset_loop();
wp_reset_postdata();
return '<div class="my-products">' . ob_get_clean() . '</div>';
}
add_shortcode( 'my_products', 'custom_my_products' );
}
Code goes in function.php file of your active child theme (or theme) or also in any plugin file.
This is tested and works on WooCommerce 3+
Notes:
- In your code you are using 2 times
global $product;
…
- Remember that in a shortcode you never echo or print anything, but you return some output…
- Don't forget to reset the loop and the query at the end.