Stepping Through a Flow Service
When stepping through a flow service, keep the following points in mind:
To step through a top-level service, you must have Execute, Read, and List access to the service. To step through all the services within a top-level service, you must have Execute, List, and Read access to all services that the top-level service invokes.
If the debug launch configuration is not configured to stop at the first flow step or there is not an enabled breakpoint in the flow service or one of its child services,
Designer will execute the service to completion and will not suspend at any flow step.
When you step through a flow step,
Designer executes the step and then suspends the debug session.
The Variables view displays the pipeline that will be passed to the next step in the flow service. You can modify, save, or restore the data while debugging the service.
If you step over a flow step that contains an enabled breakpoint,
Designer suspends service execution at the breakpoint.
To step through a flow service
2. In Debug view, select the flow step in the debug session for the service that you want to step through.
3. In Designer, select Run > Step Over or click 
on the Debug view toolbar. Designer executes the current step and then stops.
