1. In n8n add a Webhook node, method POST, and copy its Production URL into the box above.
2. On the Webhook node, set Allowed Origins (CORS) to * (or this page's address) so the browser can reach it. If you can't, delivery still happens but the app can't read the reply.
3. Click Test connection, then check the execution in n8n.

Payload sent on each event (Content-Type: text/plain, body is JSON):

{
  "source": "Security Screens QLD Quoting",
  "event": "job.saved",          // or job.deleted, client.deleted, test, sync.all
  "sentAt": "2026-06-03T…",
  "client": { "id": "C…", "name": "Jane Doe", "phone": "…", "email": "…" },
  "job": {
    "id": "J…", "address": "…", "status": "Quoted", "notes": "…",
    "items": [ { "location": "Front Entry", "product": "Stainless Steel Door",
      "application": "Hinge", "width": "820", "height": "2100", "frame": "NA",
      "hardware": ["F Interlock","Closer"], "mesh": "Aluminium",
      "colour": "Monument", "qty": 1, "notes": "" } ]
  }
}

Paste a client (or array of clients) generated by n8n. Matches on id or name — existing clients get the new jobs appended.

After n8n calculates pricing, send the job back (same ids) and import it here — it updates the job in place and appears on the Quotes page. Prices can be returned per item by position, or as full items.

[
  {
    "id": "C123",              // existing client id (name also works)
    "name": "Jane Doe",
    "jobs": [
      {
        "id": "J456",          // existing job id -> updates in place
        "status": "Final copy",
        "pricing": {
          "quoteNumber": "Q-1042",
          "currency": "AUD",
          "subtotal": 1850,
          "gst": 185,
          "total": 2035,
          "validUntil": "2026-07-15",
          "notes": "Supply & install included"
        },
        "items": [
          { "unitPrice": 950, "lineTotal": 950 },
          { "unitPrice": 450, "lineTotal": 900 }
        ]
      }
    ]
  }
]