An organization is a group of trackers. You can create as many organizations as you want based on the plan that your company is enrolled.
We are in the process of renaming the organizations into groups
Adding trackers to an organization
The main characteristic of the organizations is that the trackers can be share among them, being the same tracker in two or more organizations at the same time. This fact allows you to create groups with different purposes: aggregating different vehicle types and obtain a particular visualization for each one, create specific notifications for a vehicle selection of your fleet or simply structure your fleet information.
Adding POIs to an organization
Add POIs to a existent organization allows you to create a notification rules related with a POI (as can be the proximity to a given position) and apply it to a group of trackers being the rule linked to both organization and POI.