private function addSalesAttributes($setup)
    {
        /** @var \Magento\Sales\Setup\SalesSetup $salesSetup */
        $salesSetup = $this->salesSetupFactory->create(['resourceName' => 'sales_setup', 'setup' => $setup]);

        /** @var \Magento\Quote\Setup\QuoteSetup $quoteSetup */
        $quoteSetup = $this->quoteSetupFactory->create(['resourceName' => 'quote_setup', 'setup' => $setup]);

        $quoteSetup->addAttribute(
            'quote_address',
            'retailer_id',
            ['type' => \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER, 'visible' => false]
        );

        $salesSetup->addAttribute(
            'order_address',
            'retailer_id',
            ['type' => \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER, 'visible' => false]
        );
    }