Hi @it33,
I performed different steps:
I changed the notification format to a more lightweight way which fits my needs and uses []() for links:
[
{
"fallback": "${spaceTitle} - ${pageTitle} ${action} by ${actionUserName}: ${pageUrl}",
"pretext": "${action} in Space [${spaceTitle}](${spaceUrl}) by [${actionUserName}](${actionUserLink})",
"title": "${pageTitle}",
"title_link": "${pageUrl}",
"text": "${versionComment}",
"color": "#205081"
}
]
In the plugin Slack for Confluence Pro you can configure a Bot Icon Url. To make it appear in the channel I had to enable "Enable Overriding Icon from Webhooks:" in the system console of Mattermost.