Launch WhatsApp bulk campaigns from Google Sheets with MoltFlow

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1. Workflow Overview

How it works Send personalized WhatsApp campaigns to hundreds of contacts imported directly from a Google Sheet. This workflow creates a contact group in MoltFlow, launches a bulk send job with sma...

Best for

Social Media automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.manualtrigger, n8n-nodes-base.googlesheets, n8n-nodes-base.code, n8n-nodes-base.httprequest, n8n-nodes-base.wait

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Launch WhatsApp bulk campaigns from Google Sheets with MoltFlow
Workflow name: Launch WhatsApp bulk campaigns from Google Sheets with MoltFlow

How it works

Send personalized WhatsApp campaigns to hundreds of contacts imported directly from a Google Sheet. This workflow creates a contact group in MoltFlow, launches a bulk send job with smart anti-spam delays, and reports campaign progress — all in one click.

You click "Execute" when ready to launch a campaign
Contacts are read from your Google Sheet (phone, name, and optional custom message per contact)
A custom group is created in MoltFlow with all valid contacts
A bulk send job is launched — MoltFlow handles message delivery with smart delays to protect your WhatsApp number
After 30 seconds, the workflow checks progress and shows a summary (sent, failed, remaining)

Set up steps

Setup takes about 5 minutes:

Create a MoltFlow account and connect your WhatsApp by scanning the QR code
Generate an API key from Sessions > API Keys tab (select the "Outreach" scope preset)
Prepare your Google Sheet with columns: phone, name, message_override (optional)
In n8n, connect your Google Sheets OAuth2 credential and your MoltFlow API Key (Header Auth with header name X-API-Key)
Open the Read Contacts from Sheet node and paste your Google Sheet URL
Open the Format Contacts code node and replace YOUR_SESSION_ID with your MoltFlow session ID
Customize the default message template if needed
Click Execute Workflow to launch

Google Sheet format

Your sheet needs these columns (headers in row 1):

phone — phone number with country code, digits only (e.g. 1234567890)
name — contact name
message_override — (optional) custom message for this contact; if empty, the default template is used

Prerequisites

A MoltFlow account with a connected WhatsApp session
A Google Sheet with contact data
MoltFlow API key with custom-groups:manage, bulk-send:manage, bulk-send:read scopes

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 - Sticky Note

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

Block 2 - Sticky Note1

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

Block 3 - Start Campaign

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

Block 4 - Read Contacts from Sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 5 - Format Contacts

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

Block 6 - Create Custom Group

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

Block 7 - Prepare Bulk Send

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

Block 8 - Create Bulk Send Job

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

Block 9 - Wait 30s

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 10 - Check Campaign Progress

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

Block 11 - Campaign Summary

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

3. Summary Table

Workflow	Launch WhatsApp bulk campaigns from Google Sheets with MoltFlow
Complexity	intermediate
Nodes	11
Categories	Social Media
Author	Alex Pekler
Published	18 Feb 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/13477/13477.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

Frequently asked questions

What does Launch WhatsApp bulk campaigns from Google Sheets with MoltFlow 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 use case.

Alex Pekler

9 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.manualtrigger n8n-nodes-base.googlesheets n8n-nodes-base.code n8n-nodes-base.httprequest n8n-nodes-base.wait

Complexity

intermediate

Published 18 Feb 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/13477/13477.json

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Launch WhatsApp bulk campaigns from Google Sheets with MoltFlow

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Set up steps

Google Sheet format

Prerequisites

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note

Block 2 - Sticky Note1

Block 3 - Start Campaign

Block 4 - Read Contacts from Sheet

Block 5 - Format Contacts

Block 6 - Create Custom Group

Block 7 - Prepare Bulk Send

Block 8 - Create Bulk Send Job

Block 9 - Wait 30s

Block 10 - Check Campaign Progress

Block 11 - Campaign Summary

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