Use Reference Lines
Reference lines on a visual can be used to mark limits, thresholds, and critical values. They can mark both positive and negative values on an axis. Multiple reference lines can be added in a visual.
Reference lines are available only for bar and line charts. Controls are provided using the Rulers interactivity sidebar. See Control How Users Interact With a Visual.
Reference lines can be customized for a visual using the Rulers sidebar.
See the following topics: