It could be that Reference & Brand of a Demand are not exactly the same you have got in your stock.
Now, when quoting the Demand, you can correct the Reference, the Brand or both.
Thus, the buyer will know exactly what are you quoting.
If you are quoting a Demand with a unique Reference, you will see this screen:

If you are quoting a Demand with several references, you will see this screen:

When the customer will receive the Quotation, he will clearly see the changes made.
If it is a Quotation for a Demand:

If it is a Quotation for a Lot:

