A cookie measures ad performance. The page works the same either way.
1
Press Start a quote on your home screen, or New quote on Quotes.

2
Choose the customer, or add a new one right there. Then add what you are charging for, from your price list or a one-off line. The total works itself out.

3
Press Issue this quote, then Send on WhatsApp or by email. Your own WhatsApp opens with the message and a link already written.

