Alan

This code solved my problem

function ai_seo_change_canonical($canonical) 
	{
		global $product;
		if(is_product() && !empty($_GET)) {
			$variationID = (new \WC_Product_Data_Store_CPT())->find_matching_product_variation(
			    new \WC_Product($product->get_id()),
			    $_GET
			);
			if($variationID) {
				$variation = wc_get_product($variationID);
				if($variation) {
					$canonical = $variation->get_permalink();
				}
			}
		}
	return $canonical;
	}
add_filter('wpseo_canonical','ai_seo_change_canonical');

• This reply was modified 1 year, 3 months ago by Alan.

@suascat_wp

I don’t have the option to make a separate page for each product variant. I synchronize inventory with a third-party service. That’s why I use the WooCommerce Single Variations plugin. I can write unique meta tags and description for each product variation. They will be unique.