Sales-to-CS Handoff Checklist & Approval
Build an internal tool where sales completes a required handoff checklist for a won deal and customer success formally accepts (or rejects) ownership - with both sign-offs, timestamps, and a full audit trail recorded - so accountability transfers cleanly instead of falling through the cracks.
A logged-in internal app where sales opens a handoff for a won deal, completes every required checklist item, and submits it; CS reviews and explicitly accepts or rejects with a reason; on acceptance, ownership is recorded, both parties are notified, the account is marked onboarding-ready, and everything is exportable as a handoff-log CSV and audit trail.
Before you start
- A free Vercel account
- A free Supabase account
- A free Resend account (for handoff notifications)
- Your list of won deals in a Google Sheet or CSV (no CRM API required)
- Claude Code installed on your machine
The problem this kills
"This deal was never handed off properly." If you lead sales or customer success, you have had this argument more than once. A deal closes, the rep is already chasing the next one, and the account quietly lands on CS's desk with half the context missing - no clear scope, fuzzy expectations, unknown risks, no named stakeholders, and a timeline nobody agreed to. Customers feel the gap in their first weeks. CS scrambles. Sales feels blamed. Nobody actually owns the moment of transfer.
The root cause is that the handoff is a conversation or an email thread, not a record. There is no required checklist, no explicit acceptance, and no trail showing who confirmed what and when. So when something slips, there is nothing to point to - just two teams pointing at each other.
This Implementation Plan kills that. It turns the handoff into a structured, two-sided sign-off with a hard approval gate and a complete audit trail.
What you'll build
A small, private web app your sales and CS teams log into. For each won deal, sales opens a handoff and works through a checklist your business defines - scope, expectations, risks, stakeholders, timeline, and whatever else matters to you. Every required item has to be filled in before the handoff can be submitted. Then it goes to customer success, who reviews it and either accepts (taking formal ownership) or rejects it back with a written reason. On acceptance, the system records who signed off on each side and when, notifies both parties, and marks the account onboarding-ready. Reject, and it routes back to sales with the reason attached - never a silent dead end. Everything is exportable as a CSV and a full audit log.
What's inside the Implementation Plan
- It starts by interviewing you about your business. Before writing a single line of code, the plan has your AI agent ask about your real handoff process - who does it, what systems and spreadsheets you use, the exact checklist items each side requires, your acceptance criteria, your deal-naming and ID conventions, your volumes, and your messy edge cases. It reflects a short tailored spec back to you for a thumbs-up. You get a tool shaped to how you actually work, not a generic template.
- A step-by-step build, each step ending in a ready-to-paste prompt - no coding knowledge assumed.
- A configurable checklist so required items per side match your process exactly.
- The two-gate approval flow: sales submits a complete checklist, CS explicitly accepts or rejects with reasons.
- A duplicate guard keyed on deal ID so there's only ever one active handoff per deal, versioned when a rejection sends it back for resubmission.
- A "No API yet?" fallback that loads won deals from a Google Sheet or CSV and exports a clean handoff-log CSV - so you can build and use this today with no CRM integration.
The governance it includes (this is the point)
- Login so only your team can use the tool.
- Row-level security so people only see their own organization's data.
- A complete audit trail - who completed each item, who submitted, who accepted or rejected, with timestamps on every action.
- A hard human-in-the-loop approval gate - sales drafts and submits, CS reviews and explicitly accepts, and only then is ownership committed and the account marked onboarding-ready. Nothing transfers automatically.
- Duplicate guards - one active handoff per deal, versioned on rejection and resubmission, so the same deal can't be processed twice.
Who it's for
Sales and CS leaders who are tired of the "this was never handed off properly" argument and want accountability to transfer cleanly, with a record to back it up. If you can fill in a spreadsheet, you can build and run this.
You've got this - paste the first prompt and let the plan interview you.