Disable add to cart button based on WooCommerce product custom stock status
You can use the following to disable add to cart button based on a custom stock status (where you will replace custom_status_slug by your custom status slug):
add_filter('woocommerce_is_purchasable', 'filter_is_purchasable_callback', 10, 2 );add_filter('woocommerce_variation_is_purchasable', 'filter_is_purchasable_callback', 10, 2 );function filter_is_purchasable_callback( $purchasable, $product ) { if ( $product->get_stock_status() === 'custom_status_slug' ) { return false; } return $purchasable;}Code goes in functions.php file of the active child theme (or active theme). Tested and works.
I propose a solution that displays the stock status on the product page but not the 'add to cart' button
add_filter('woocommerce_product_is_in_stock', 'filter_is_in_stock_callback', 10, 2 );function filter_is_in_stock_callback( $stock, $product ) { if ( $product->get_stock_status() === 'custom_status_slug' ) { return false; } return $stock;}Thanks for the first answer :)