We use the Slack API as part of the main deploy script. It's a curl call like at the end of this tutorial https://api.slack.com/tutorials/slack-apps-hello-world

We use the Slack API as part of the main deploy script. It's a curl call like at the end of this tutorial https://api.slack.com/tutorials/slack-apps-hello-world https://api.slack.com/tutorials/slack-apps-hello-world In other projects we use more complex API features including buttons, links, e.g. when a user cancels their account.