A proposal that arrives as a 14MB PDF is a homework assignment. Couples open what looks like their page: your color, your collections, a button that says accept.
In Amberpact a proposal is a smart file on the project. You can start from a wedding collections template, attach add-ons, and send it to the client portal. They pick a package. The project moves to Proposal accepted.
Keep the rest of the job in the same room
The contract and the invoice should not be a new email thread. After they accept, send the agreement. A workflow can fire when it is signed and drop the retainer invoice in the same portal.
That is the whole point of a studio OS. Not more tabs. One job card.
Try it without a card
On the Golden Hour demo, Vasquez Engagement is already at proposal sent. View as client and accept a collection. Then come back to the staff pipeline and see the stage change.
When you are ready for your own empty studio, create one. Starter includes proposals. Automations that send the next file sit on Studio.