<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">

    <!-- save relais_id to order -->
    <event name="sales_model_service_quote_submit_before">
        <observer name="saveOrderRelaisId" instance="Chronopost\Chronorelais\Observer\saveOrderRelaisId"/>
        <observer name="saveOrderRdvInfo" instance="Chronopost\Chronorelais\Observer\saveOrderRdvInfo"/>
    </event>

</config>