The figure below illustrates how dispute management fits in a self-billing process and is followed by an explanation:

Your service provider can use the self-billing features on the SAP TM collaboration portal to create a dispute case against a charge amount and a logistics quantity in the freight order. On the NWBC dispute case screens, you can approve, reject, or propose a change to the dispute case. The system displays your decision on the collaboration portal, where the service provider can accept your proposal or re-submit the dispute case.