| Erroneous Behavior | Possible Reason | Solution | Further Information |
|---|
| Clicking on a button has no effect. | It is not defined which process flow should be triggered when clicking this button. | The trigger event is not set. The trigger event defines which button event should trigger the execution of the related element. You can find the attribute Trigger Event in the attributes panel of user tasks and boundary events. | |
No forms are displayed during execution.
| No proxy port has been set in the service properties. | If you are using forms within your BPMN model, insert 5444 as standard proxy port. | |
| The expected form is not displayed during execution. | The form is not assigned to the corresponding process step. | Assign the form to the corresponding user task. | |