Gemini-powered Facebook comment & DM assistant with Notion

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Important notice

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

1. Workflow Overview

What Problem Does It Solve? Customers often ask product questions or prices in comments. Businesses waste time replying manually, leading to delays. Some comments only need a short thank you reply,...

Best for

Support Chatbot automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.facebookgraphapi, n8n-nodes-base.webhook, n8n-nodes-base.set, n8n-nodes-base.notion, n8n-nodes-base.httprequest, n8n-nodes-base.code

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Gemini-powered Facebook comment & DM assistant with Notion
Workflow name: Gemini-powered Facebook comment & DM assistant with Notion

What Problem Does It Solve?

Customers often ask product questions or prices in comments.

Businesses waste time replying manually, leading to delays.

Some comments only need a short thank-you reply, while others need a detailed private response.

This workflow solves these by:

Replying with a friendly public comment.

Sending a private message with details when needed.

Handling compliments, complaints, and unclear comments in a consistent way.

How to Configure It

Facebook Setup

Connect your Facebook Page credentials in n8n.

Add the webhook URL from this workflow to your Facebook App/Webhook settings.

AI Setup

Add your Google Gemini API key (or swap for OpenAI/Claude).

The included prompt is generic — you can edit it to match your brand tone.

Optional Logging

If you want to track processed messages, connect a Notion database or another CRM.

How It Works

Webhook catches new Facebook comments.

AI Agent analyzes the comment and categorizes it (question, compliment, complaint, unclear, spam).

Replying:

For questions/requests → public reply + private message with full details.

For compliments → short thank-you reply.

For complaints → apology reply + private message for clarification.

For unclear comments → ask politely if they need help.

For spam/offensive → ignored (no reply).

Replies and messages are sent instantly via the Facebook Graph API.

Customization Ideas

Change the AI prompt to match your brand voice.

Add forwarding to Slack/Email if a human should review certain replies.

Log conversations in Notion, Google Sheets, or a CRM for reporting.

Expand to Instagram or WhatsApp with small adjustments.

If you need any help Get In Touch

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 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.1

Block 2 - Google Gemini Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 3 - Delete Comms

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

Block 4 - Reply

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

Block 5 - Reply1

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

Block 6 - Webhook1

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

Block 7 - Parse Comms

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 8 - Check Database

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

Block 9 - Fetch KB

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 10 - Arrange KB

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

Block 11 - Who's there?

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

Block 12 - Comment

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

Block 13 - Appropriate?

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

Block 14 - Separate rep&sent

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 15 - Add to DB

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

Block 16 - Add to DB1

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

Block 17 - If2

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

Block 18 - If3

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

Block 19 - Delete Comms1

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

Block 20 - Code2

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

Block 21 - Messages

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 22 - Messages1

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 23 - If4

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

3. Summary Table

Workflow	Gemini-powered Facebook comment & DM assistant with Notion
Complexity	advanced
Nodes	23
Categories	Support Chatbot, AI Chatbot
Author	Abdullah Alshiekh
Published	30 Aug 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8066/8066.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 Support Chatbot workflows AI Chatbot workflows

Frequently asked questions

What does Gemini-powered Facebook comment & DM assistant with Notion 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 Support Chatbot, AI Chatbot use case.

Abdullah Alshiekh

18 workflows

Nodes

@n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatgooglegemini n8n-nodes-base.facebookgraphapi n8n-nodes-base.webhook n8n-nodes-base.set n8n-nodes-base.notion n8n-nodes-base.httprequest n8n-nodes-base.code

Complexity

advanced

Published 30 Aug 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/8066/8066.json

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Gemini-powered Facebook comment & DM assistant with Notion

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

What Problem Does It Solve?

How to Configure It

How It Works

Customization Ideas

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - AI Agent

Block 2 - Google Gemini Chat Model

Block 3 - Delete Comms

Block 4 - Reply

Block 5 - Reply1

Block 6 - Webhook1

Block 7 - Parse Comms

Block 8 - Check Database

Block 9 - Fetch KB

Block 10 - Arrange KB

Block 11 - Who's there?

Block 12 - Comment

Block 13 - Appropriate?

Block 14 - Separate rep&sent

Block 15 - Add to DB

Block 16 - Add to DB1

Block 17 - If2

Block 18 - If3

Block 19 - Delete Comms1

Block 20 - Code2

Block 21 - Messages

Block 22 - Messages1

Block 23 - If4

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