<?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_model_service_quote_submit_before">
        <observer name="msp_cod_service_quote_submit_before"
                  instance="MSP\CashOnDelivery\Observer\SalesModelServiceQuoteSubmitBefore"/>
    </event>

</config>
