You can tag objects to group related items and add color to the tag in order to
visually distinguish them for easy scanning. You can create tags for the following
objects: address objects, address groups, user groups, zones, service groups, and
security rules.
You can apply one or more tags to objects and to security rules, up to a maximum of 64
tags per object. Panorama supports a maximum of 10,000 tags, which you can apportion
across Panorama (shared and device groups) and the managed devices (including
devices with multiple virtual systems).