Send WhatsApp payment reminders automatically with MoltFlow — n8n Workflow

Medium complexity⏰ Scheduled6 nodes🏷️ Invoice Processingby Alex Pekler

Overview

How it works

This workflow automates WhatsApp payment reminders using the MoltFlow API. No more chasing clients manually — reminders go out every morning at 9 AM with personalized messages.

A schedule trigger fires daily at 9 AM A code node builds your contact list with names, amounts, and due dates Each contact receives a personalized WhatsApp reminder via MoltFlow Results are logged — you can see which messages succeeded and which failed

Set up steps

Setup takes about 3 minutes:

Create a

Nodes used

HTTP RequestCode

Workflow Preview

WhatsApp Payment Reminder

Automatically sends personalized WhatsApp payment remin

How it works:

1. Schedule fires

Setup (3 min)

1. Create a MoltFlow account

2. Connect WhatsApp (scan QR)

3. Generate API key > Sessions > API Keys tab

4. Add credential: Header Auth > Name: X-API-Key >

⚡

Daily 9 AM Trigger

Prepare Contacts

Send WhatsApp Reminder

Message Sent?

Log Success

Log Failure

6 nodes5 edges

How it Works

1
Trigger
The workflow starts with a scheduled trigger, running on a defined schedule.
2
Process
Data flows through 6 nodes, connecting code, httprequest, if.
3
Output
The workflow completes its automation and delivers the result to the configured destination.

Node Details (6)

HTTP Request

httpRequest

Code

code

How to Import This Workflow

1Click Download JSON button on the right to save the workflow file.
2Open your n8n instance. Go to Workflows → New → Import from file.
3Select the downloaded send-whatsapp-payment-reminders-automatically-with-moltflow file and click Import.
4Set up credentials for each service node (API keys, OAuth, etc.).
5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n → Import from JSON:

{ "name": "Send WhatsApp payment reminders automatically with MoltFlow", "nodes": [...], ...}

Integrations

codehttprequestifscheduletrigger

Get This Workflow

Download and import in one click

Download JSON View on n8n.io

Nodes6

Complexitymedium

Triggerscheduled

CategoryInvoice Processing

Created by

Alex Pekler

@waiflow

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🔗 Webhook·12 nodes