etc/config.xml
<?xml version="1.0"?>
<!--
/**
* @category Staempfli
* @package Staempfli_Slack
* @copyright Copyright © Stämpfli AG. All rights reserved.
* @author marcel.hauri@staempfli.com
*/
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
<default>
<chatconnector>
<slack>
<url/>
<channel>general</channel>
<username>Magento 2</username>
<icon>rocket</icon>
</slack>
</chatconnector>
</default>
</config>