Workers and Custom apps
If you intend to develop and use a Custom app to influence the behavior of activity definitions, you must go to the Planon App Center and register it there. For more information, see the topics on Platform apps. After registration, you can use the custom app as a Worker for (standard) activity definitions.
Note |  If you add a worker to a Standard activity definition, it is also added to any Activity definitions that are based on that Standard activity definition. |
On the action panel, the Start activity definition workers action is available to execute the worker as a batch job. You can schedule this action in the Alerts & actions TSI to make it run automatically at configurable intervals.
Example: You can create workers for your custom app that move Planned activities on the graphical planner, or that change the activity definition's Schedule or Costs (apply indexation for example).