Deletion of Data Fields Parameters Participants and Type Declarations
You can delete a project object such as a data field, parameter, participant, or type declaration by right-clicking it in the Project Explorer and selecting Delete.
However, if the project object has been associated with another object such as an activity or a sequence flow, the following message is displayed:
If you click Yes, the project object (in this example, a data field) is deleted, but it will still be referenced in XPDL for the project, which can cause problems. If you click No, the project object is not deleted. You can then go to the Properties view and examine the references to that object:
In this example, the data field is referenced in the service task RequestForAppointment and in the user task ShowAppointmentDetails. Click Go To to show that task in the Process Editor.