If you use Slack on a daily basis, need real-time updates, and want to set it up as seamlessly as possible, this is the easiest way to go.
Keep in mind that Slack integration is only available on paid plans. So any related features, such as Slack alerts, will not be available on the free plan.
After the last step, you will be automatically redirected to the "Integration Details" page.
Create a Slack message alert
On this page, you can click the "Send a Slack message alert" link. This takes you to the "New Alert" view, where you can configure your first Slack message alert, eg. the message type or recipient.
If you don't know how to set up Alerts, you can read more about how to do it here.