What the flow protects
An exchange is two obligations running in opposite directions at once: a unit going out, and a core coming back. They are agreed at different moments, settled at different moments, and are easy to lose track of separately. This flow keeps them as one thing.
- One flowSource, return, inspection, resolution and evidence stay connected rather than living in separate systems.
- One next actionBlocked work points to the exact task needed to move the core forward.
- One record of truthEach task saves back to the right operational record for audit and customer follow-up.
- One explainable outcomeWhether the core is returned, waived or charged, the reason and the financial result are recorded together.
The flow
Four phases, read top to bottom. The main path runs down the center. Where a phase can stall, the exception is shown to the right of the step that raises it.
How to read it
Rectangles on the center line are steps. Highlighted panels are the questions that decide whether the flow continues. The muted panels on the right are what happens when the answer is no — each one returns to the flow once it is resolved, rather than ending it. A core is never simply dropped; it is closed, waived or charged, and the reason is recorded either way.