In your customer's inbox, they will receive an email letting them know a proposal has been created for them view
When they click the link, they will be presented with the proposal in HTML format
At the bottom of the screen they will see the option to Accept or Decline the proposal
If they Decline the proposal, a pop-up box will appear on the screen requiring them provide a reason and to enter their name
If they Accept the proposal, a popup box will appear asking them to add any notes (great place to add a PO Number) and requiring they add their name and accept the terms and conditions.
If the Proposal is accepted, then your customer will be redirected a landing page where they can download the PDF version of the proposal