Iconic WDS - disable timeslot for specific products.

functions.php

/**
 * Iconic WDS - disable timeslot for specific products.
 *
 * @return bool
 */
function iconic_wds_disable_timeslot_for_specific_products( $disabled ) {
	// todo replace with your product ids.
	$disable_for_products = array( 10 );

	if ( only_these_products_are_in_cart( $disable_for_products ) ) {
		return false;
	}

	return $disabled;
}
add_filter( 'iconic_wds_delivery_slots_allowed', 'iconic_wds_disable_timeslot_for_specific_products' );

/**
 * Are only these products in cart.
 *
 * @param array $product_ids Product ID.
 *
 * @return bool
 */
function only_these_products_are_in_cart( $product_ids ) {
	if ( ! function_exists( 'WC' ) ) {
		return false;
	}

	$cart = WC()->cart->get_cart();

	foreach ( $cart as $item ) {
		if ( ! in_array( $item['product_id'], $product_ids ) ) {
			return false;
		}
	}

	return true;
}