Throwing errors in service flows

For errors that are thrown from a service flow or heritage human service, you can use error end events to end the processing of the service at a specified step.

To add an error end event to a service, complete the following steps:

1. Open the appropriate process application in the Designer view.
2. From the IBM® Process Designer library, create or open the service flow or heritage human service that you want to work with, and click its Diagram tab.
   To create the service, see Creating a service flow or Building a heritage human service.
3. From the palette, drag an error end event onto the canvas.
4. In its Implementation properties, under Error code, specify the error code for the error to be thrown.
   The error code is automatically included in the list of defined errors that you can select to catch when you create an error intermediate event in a parent process or service.
   Click the Error mapping picker to map the error data to an error mapping variable that was previously defined on the Variables tab.
   Note: The error data cannot be mapped to a variable that is of a list type. If you want to pass information that has the structure of a sequence as error data, create a business object that contains a parameter that is of a list type and then use this business object as the variable's type.
5. In the diagram, connect the error end event to the logic you want to run when the error occurs.
6. Click Save or Finish Editing.