Clear cache automatically after purchase

Hello @rojasq

Thank you for reaching out and I am happy to help!

The W3 Total Cache is purged once the content is updated in the backend, however, there are some things like a stock that are not triggering the purge.

Try adding this to your functions.php:

add_action( 'woocommerce_product_set_stock', 'w3tc_flush_all_custom', 999 );
add_action( 'woocommerce_variation_set_stock', 'w3tc_flush_all_custom', 999 );

function w3tc_flush_all_custom() {
    w3tc_flush_all();
}

Let me know if this helps!

Thanks!