We are new PD customers and have been experimenting with some of the extensions. We use Mattermost for ChatOps and have been trying to send web hooks to post incident updates to our team’s channel.
The generic web hook option isn’t in a format that can be consumed by MatterMost (results in HTTP 400 error). According to support, the Generic web hook doesn’t allow for custom formats of results either.
Mattermost supports Slack web hooks, but the Slack extension only redirects to Slack, with no custom URL option.
I’m aware of a project on GitHub that manages this translation, I wanted to see if there was support for a native integration.