An app for the sales reps' phones: pick the customer and the products, and it applies the price list in force, that customer's discount and VAT and prints the quote as a PDF on the company's own template. A rep can raise the discount to 15%; past that, no PDF until Maite approves. Esan builds it, checks it reproduces an issued quote to the cent, publishes it with a QR code, then fixes what happens without a signed-in account and puts a 4% price rise live.