Create financial newsletters with Perplexity Research, GPT drafting, and Gmail approval flow

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Automated Weekly Newsletter with AI Research, Editorial Drafting, and Approval Flow This n8n template demonstrates how to automate the full production cycle of a professional weekly newsletter. It ...

Best for

Social Media automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, n8n-nodes-base.code, n8n-nodes-base.gmail, n8n-nodes-base.respondtowebhook, n8n-nodes-base.perplexity, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.webhook, n8n-nodes-base.if

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Cristina.

Original n8n.io source

1.1 Workflow description

Title: Create financial newsletters with Perplexity Research, GPT drafting, and Gmail approval flow
Workflow name: Create financial newsletters with Perplexity Research, GPT drafting, and Gmail approval flow

Automated Weekly Newsletter with AI Research, Editorial Drafting, and Approval Flow

This n8n template demonstrates how to automate the full production cycle of a professional weekly newsletter. It combines AI-powered market research, editorial drafting, compliance validation, and an approval loop — all before creating a final Gmail draft ready for distribution.

Use cases are many:

Wealth managers sending weekly market updates to clients
Startups producing recurring research digests
Teams creating automated newsletters for marketing or content distribution

Good to know

At time of writing, each AI call (research, editorial, QC) consumes API tokens from Perplexity and OpenAI. See provider pricing for updated info.
Gmail integration requires OAuth setup with your account.
You can adapt the prompts to any domain — from finance to tech to education.

How it works

Schedule Trigger runs every week and sets the date window.
Research LLM fetches structured JSON market data using Perplexity.
Editorial LLM transforms research into a polished ~2,000 word client-ready newsletter.
QC LLM validates factual accuracy and compliance risks before approval.
Preview Email is sent with Approve/Revise buttons. Clicking opens a secure n8n-hosted approval form.
Final Draft Creation: Once approved, the workflow generates a clean Gmail draft, ready to send.

How to use

Replace the demo schedule trigger with your own (weekly, daily, or event-based).
Set up Gmail OAuth credentials to enable email previews and final drafts.
Update branding (logo, disclaimer, signature) in the HTML builder node.
Adjust prompts to your audience — e.g., simplify tone for marketing, or keep institutional tone for financial clients.

Requirements

Perplexity account for research API (or your LLM of choice)
OpenAI for editorial and QC steps (or your LLM of choice)
Gmail account with OAuth credentials
Optional: your own domain to host the approval webhook

Customising this workflow

This workflow can be extended beyond financial newsletters. Try:

Content marketing: Automate weekly digests or trend reports
Education: Generate curriculum summaries with approval loops for teachers
Internal comms: Automate compliance-checked company updates

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 2 - Parse Perplexity JSON

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 3 - Week ranges + run_key

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 4 - Assemble Preview (Code)

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 5 - Send Preview

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 6 - Respond to Webhook

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.4

Block 7 - Enrich for Editorial

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 8 - Research LLM

Type / Role: n8n-nodes-base.perplexity - perplexity
Config choices: Version 1

Block 9 - QC LLM

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 10 - HTML Builder LLM

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 11 - Editor LLM

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 12 - Normalize

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 13 - Approval Submit (POST)

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2.1

Block 14 - Create Final Draft for Editor

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 15 - Approval Webhook (GET)

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2.1

Block 16 - Merge Revision Notes

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 17 - Check Action Type

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 18 - Decode

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 19 - Respond Form HTML1

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.4

Block 20 - Respond to Webhook (HTML page)

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.4

Block 21 - If

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 22 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 23 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 24 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Showing the first 24 of 27 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Create financial newsletters with Perplexity Research, GPT drafting, and Gmail approval flow
Complexity	advanced
Nodes	27
Categories	Social Media, Multimodal AI
Author	Cristina
Published	06 Oct 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/9314/9314.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Social Media workflows Multimodal AI workflows

Frequently asked questions

What does Create financial newsletters with Perplexity Research, GPT drafting, and Gmail approval flow do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Social Media, Multimodal AI use case.

Cristina

1 workflow

Nodes

n8n-nodes-base.scheduletrigger n8n-nodes-base.code n8n-nodes-base.gmail n8n-nodes-base.respondtowebhook n8n-nodes-base.perplexity @n8n/n8n-nodes-langchain.openai n8n-nodes-base.webhook n8n-nodes-base.if

Complexity

advanced

Published 06 Oct 2025

Likes 0

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Install path: /data/workflows/9314/9314.json

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Create financial newsletters with Perplexity Research, GPT drafting, and Gmail approval flow

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Automated Weekly Newsletter with AI Research, Editorial Drafting, and Approval Flow

Good to know

How it works

How to use

Requirements

Customising this workflow

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - Parse Perplexity JSON

Block 3 - Week ranges + run_key

Block 4 - Assemble Preview (Code)

Block 5 - Send Preview

Block 6 - Respond to Webhook

Block 7 - Enrich for Editorial

Block 8 - Research LLM

Block 9 - QC LLM

Block 10 - HTML Builder LLM

Block 11 - Editor LLM

Block 12 - Normalize

Block 13 - Approval Submit (POST)

Block 14 - Create Final Draft for Editor

Block 15 - Approval Webhook (GET)

Block 16 - Merge Revision Notes

Block 17 - Check Action Type

Block 18 - Decode

Block 19 - Respond Form HTML1

Block 20 - Respond to Webhook (HTML page)

Block 21 - If

Block 22 - Sticky Note

Block 23 - Sticky Note1

Block 24 - Sticky Note2

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions