A rule run occurs whenever LogicLoop runs your rule. This can happen automatically when you set your rules to run on a schedule, or manually when you click "Run Rule Now". For example, let's say you have a rule that runs every hour to check if any new users signed up for your service, and if so, it will send your team a Slack notification with a list of all the new users. In a month, this rule will run 30 * 24 = 720 times. If you had two such rules running, you would incur a usage of 1440 rule runs. If you choose to run your rule less frequently, e.g. once per day, then in a given month that rule would only incur a usage of 30 rule runs.