Process unit changes to sales orders

Trigger: A client or internal sales representative submits a request to modify the inventory units, airing times, or allocations on an active sales order.

1. Receive the requested unit modifications for the existing sales order
2. Verify current inventory availability and pricing for the new broadcast units or time slots
3. Determine the impact on overall campaign delivery and existing commitments
4. Update the sales order system with the revised unit allocations
5. Release the updated schedule to the traffic or broadcasting system
6. Transmit order confirmation and revised billing terms to the client

Outcome: The sales order reflects the requested unit changes, inventory availability is updated, and the revised schedule is cleared for broadcasting and billing.