Vertical Navigation Item Badge
lightning:verticalNavigationItemBadge
A link and badge within a lightning:verticalNavigationSection or lightning:verticalNavigationOverflow. This component requires API version 41.0 and later.
For Aura components only. For LWC development, use lightning-vertical-navigation-item-badge.
For Use In
Lightning Experience, Experience Builder Sites, Salesforce Mobile App, Lightning Out (Beta), Standalone Lightning App, Mobile Offline
A lightning:verticalNavigationItemBadge component is a navigation item that displays a numerical badge to the right of the item label.
Here's an example that creates a navigation menu with an item containing a badge.