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Starter · $296 nodes

Proposal Approval Checkpoint

A proposal goes out with the wrong price, an old scope, or a typo in the client's name — and you only notice after they reply. This workflow puts a fast human gate in front of every send: the draft pauses, you get a one-click approve or reject in Slack, and only approved proposals reach the client.

Without it

You write the proposal, mean to re-read it, get pulled into a call, and send it half-checked. The mistake you catch a day later costs you credibility — or the deal.

With this workflow

Every draft stops for a two-second approve/reject in Slack before it can leave. Nothing client-facing goes out unreviewed, and approvals don't slow you down.

How it works

  1. 1
    Catch the draftA webhook fires the moment a proposal is ready (from your doc tool, CRM, or a manual trigger) and holds it before any send.
  2. 2
    Ask for sign-offPosts the proposal summary to Slack with Approve / Reject buttons — the whole review is one tap, no inbox digging.
  3. 3
    Branch on the answerApproved → it continues to send. Rejected → it stops and notifies you why, so nothing slips out by accident.
  4. 4
    Send & recordOn approval, Gmail sends the proposal and the decision is logged with a timestamp for a clean audit trail.

Built with

WebhookSlack approvalGmail

Best for

  • Agencies where one wrong proposal can sink trust
  • Teams of 2-5 who send under partner review
  • Anyone who's hit send a beat too early

Questions

Does the approval step slow my proposals down?

Barely — it's a single Slack tap, usually answered in seconds. The point is to stop the rare bad send, not to add bureaucracy.

Can more than one person approve?

Yes. Route the approval to a channel or to specific people, and require one or several approvals before it proceeds.

What's it tested on?

Tested on n8n v1.58+. You connect your own Slack and Gmail (or swap in your email tool).

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