CORE • Finance invoice-reminder-chain.json

Invoice Reminder Chain

Watches Stripe invoices or Airtable 'Invoices' table for status=overdue. Branches on days overdue, sends templated reminders with payment link, escalates to Slack after 14 days, auto-cancels if paid webhook fires.

Stripe WatchWait 7dGmail Reminder #1Wait 7dGmail Reminder #2 + Slack Alert

Trigger

Stripe / Airtable

Time saved

~4h/month

Customize

15 min

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6–10 min per workflow. Unlocked after Gumroad purchase.

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Loom embed per workflow — shows exact node to edit for new client invoice-reminder-chain.json

n8n JSON preview — node notes included

Download JSON

Each node has notes with customize instructions. Import via n8n → Workflows → Import from File.

{
  "name": "Invoice Reminder Chain",
  "nodes": [
    {
      "parameters": {},
      "name": "Stripe Watch",
      "type": "n8n-nodes-base.stripe",
      "typeVersion": 1,
      "position": [
        300,
        300
      ],
      "notes": "// Invoice Reminder Chain \u2014 Stripe Watch: CONFIGURE: replace with your credentials. See Setup PDF p.3 for customization (15 min). Branch handles error \u2192 continues safely.",
      "notesInFlow": true
    },
    {
      "parameters": {},
      "name": "Wait 7d",
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1,
      "position": [
        480,
        300
      ],
      "notes": "// Invoice Reminder Chain \u2014 Wait 7d: See Setup PDF p.3 for customization (15 min). Branch handles error \u2192 continues safely.",
      "notesInFlow": true
    },
    {
      "parameters": {},
      "name": "Gmail Reminder #1",
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 1,
      "position": [
        660,
        300
      ],
      "notes": "// Invoice Reminder Chain \u2014 Gmail Reminder #1: See Setup PDF p.3 for customization (15 min). Branch handles error \u2192 continues safely.",
      "notesInFlow": true
    },
    {
      "parameters": {},
      "name": "Wait 7d",
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1,
      "position": [
        840,
        300
      ],
      "notes": "// Invoice Reminder Chain \u2014 Wait 7d: See Setup PDF p.3 for customization (15 min). Branch handles error \u2192 continues safely.",
      "notesInFlow": true
    },
    {
      "parameters": {},
      "name": "Gmail Reminder #2 + Slack Alert",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 1,
      "position": [
        1020,
        300
      ],
      "notes": "// Invoice Reminder Chain \u2014 Gmail Reminder #2 + Slack Alert: See Setup PDF p.3 for customization (15 min). Branch handles error \u2192 continues safely.",
      "notesInFlow": true
    }
  ],
  "connections": {
    "Stripe Watch": {
      "main": [
        [
          {
            "node": "Wait 7d",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Wait 7d": {
      "main": [
        [
          {
            "node": "Gmail Reminder #2 + Slack Alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Gmail Reminder #1": {
      "main": [
        [
          {
            "node": "Wait 7d",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "c5f2bcc8-c9a7-42e9-b8c8-07b16bdf34b6",
  "meta": {
    "templateId": "invoice-reminder-chain",
    "pack": "Agency Automation Starter Kit",
    "tier": "core",
    "version": "1.0.0",
    "docs": "See Setup PDF + Loom (15-min customize guide)",
    "support": "Updates free for 6 months \u2014 n8n node changes patched"
  }
}

How to customize in 15 min: 1) Duplicate workflow 2) Open first node → swap credentials 3) Edit Set nodes for client Slack channel / CRM fields 4) Edit OpenAI prompt tone 5) Test webhook → Activate. See Setup PDF.

CORE WORKFLOW

Invoice Reminder Chain

Overdue invoice detection via Stripe/Airtable → polite nudge → firmer reminder → Slack escalation. Stops when marked paid.

Fileinvoice-reminder-chain.json

Nodes5

Included in$49 Core (12)

Buy CORE — $49 Preview JSON (demo)

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Stock n8n free alternative? Yes — but you rebuild it. This is curation + comments + Loom for 15-min client swaps. If you bill $50+/h, payback is <1h.

Bundle vs single template

Individual n8n templates sell $9–49 each elsewhere. Pack of 12 at $49 = $4/workflow. Pro adds 6 high-value AI workflows (lead scoring, outreach sequencer) that agencies charge $500+ to build custom.

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Customize checklist (from PDF)

Duplicate → rename to client slug
Swap credentials (first node notes)
Edit Set node: Slack channel, CRM table
Edit OpenAI prompt voice (if present)
Test webhook → activate

Open setup guide →