<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">     
    <!-- <event name="sales_order_place_after"> -->
    <event name="checkout_submit_all_after">
        <observer name="custom_daysconfig_checkout_submit_all_after" instance="Custom\Daysconfig\Observer\ProcessOrder" />
    </event>
</config>