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I will build ai invoice automation with whatsapp payment reminders using n8n
Akshay Patel
About this gig
Stop chasing customers for unpaid invoices manually.
I build custom AI-powered invoice automation systems that read your invoices, track due dates, and automatically send WhatsApp payment reminders so you get paid on time without lifting a finger.
What the automation does
- Extracts data from your PDF invoices automatically (invoice number, amount, due date, customer details)
- Stores and tracks every invoice in Google Sheets always up to date
- Sends WhatsApp reminders before the due date
- Sends a reminder on the due date
- Automatically follows up with overdue notifications
- Tracks payment status so you always know who's paid and who hasn't
The result: fewer manual follow-ups, faster payments, and a professional, consistent collections process without hiring anyone.
Perfect for
Small businesses · Agencies · Consultants · Accountants · Service providers · Freelancers · Finance teams
Built with
n8n · OpenAI / Gemini · Google Sheets · WhatsApp API · Gmail · PDF data extraction
Why work with me
- Business-focused automation, not just technical scripts
- Clean, scalable workflows you can hand off to your team later
- Fast communication and complete setup assistance
- Reliable support after delivery.
Get to know Akshay Patel
Akshay Patel
AI Workflow Automation Specialist
- FromIndia
- Member sinceJun 2026
- Avg. response time1 hour
Languages
Hindi, English
I help businesses automate repetitive tasks using AI and workflow automation.
My expertise includes:
• n8n workflow development
• OpenAI integrations
• Resume screening systems
• Gmail automation
• Google Sheets automation
• API integrations
• Lead generation workflows
• Document processing automation
I focus on creating reliable, scalable, and cost-effective automation solutions that save time and improve business efficiency.
FAQ
What invoice formats are supported?
Currently, the automation is designed for structured PDF invoices. If your invoices follow a consistent format, the system can accurately extract and process the required information.
Which WhatsApp solution do you support?
I am currently using Twiio Whatsapp but I can integrate with WhatsApp Business API, WhatsApp Cloud API, Twilio WhatsApp, or other supported providers depending on your setup.
Can the system send automatic payment reminders?
Yes. The workflow can send reminders before the due date, on the due date, and after the invoice becomes overdue.
Can invoice data be stored in Google Sheets?
Yes. Extracted invoice information can be automatically recorded and tracked in Google Sheets.
Can you customize the workflow for my business?
Absolutely. Every business has different invoice processes, and I can customize the automation according to your requirements.
Do I need an n8n account?
If the workflow will be deployed in your environment, you will need an n8n account or server. I can also guide you through the setup process.
Will I receive the workflow source files?
es. All packages include the workflow files and implementation details.
