---
tags:
  - 🏷️topic/💾software/colleague
  - 🚩purpose/ℹ️documentation
---
Like [[Colleague/DMI|DMI Listeners]] that wait for information before taking action, App Listeners wait on various Colleague database-aware apps and can act on that information. Colleague UI is managed under an App Listener. **SBAL** can be used to *bounce* (i.e. bring down and then back up) App Listeners, such as UI.