Sales through Brokers

 Dear All,

My client is doing the Sales through Broker i.e he issues the goods to the Broker and then the Broker gives the material to the Customer for Inspection purpose and takes it back from the Customer after his approval. The Customer can have the option to accept the full lot or a partial lot as per his requirement. After that the Broker returns the material to my client. Then the normal Sales Order cycle initiates. Please guide me how to meet this requirement and in this case my client is also paying commission to the Broker for the Sales done.