To receive notifications on Slack, you first have to set up incoming webhooks on Slack as described
Create a new Slack app
Select the workspace in which you prefer to receive notifications.
In the menu “Basic Information”, select Incoming Webhooks.
Activate Incoming Webhooks
Click on “
Add new webhook to Workspace
” and grant permission to access your Slack workspace
Note: notifications can be received either in a channel or as a direct message
Once the access is granted, you can copy the webhook URL and insert it into the Slack integration window in the workflow.
The new alert is now ready.