Shopify Order Fulfillment & Send Tracking Link via WhatsApp Using Rapiwa API

Who is this for?

This n8n workflow automatically sends WhatsApp notifications to customers when their Shopify orders are fulfilled. It extracts order details, validates customer phone numbers for WhatsApp compatibility using the Rapiwa API, sends tracking information via WhatsApp, and logs all interactions in Google Sheets with appropriate verification status.

What this Workflow Does

This n8n workflow listens for new order fulfillments on Shopify and automatically sends a WhatsApp message with tracking details to customers. It uses the Rapiwa API to verify if the customer's number is on WhatsApp, formats all the data, sends a message, and logs everything to Google Sheets for tracking and auditing purposes.

Key Features

• Webhook-Triggered: Activates on new Shopify fulfillment events
• Phone Number Validation: Uses Rapiwa to check WhatsApp compatibility
• Tracking Message Automation: Sends real-time tracking messages via WhatsApp
• Data Cleaning: Formats phone numbers and customer data
• Smart Branching: Separates verified and unverified WhatsApp users
• Google Sheets Logging: Stores data with status labels for all messages
• Rate-Limit Protection: Wait node helps space API calls
• Dual Sheet Logging: Maintains separate records for verified and unverified numbers

Requirements

Tools & Services

• An n8n instance (self-hosted or cloud)
• A Shopify store with REST API access enabled
• A Rapiwa.com account with:
  • Valid Bearer Token
  • Connected and verified WhatsApp number
• A Google Sheet with the following columns:
  • Like this Sample Sheet
• Google Sheets OAuth2 credentials set up in n8n
• Shopify API credentials added to n8n
• Rapiwa Bearer Token added as httpBearerAuth credentials

How to Use

Step-by-step Setup

1. Connect Shopify to n8n

   • Use the Shopify Trigger node
   • Set event to fulfillments/create to capture new fulfillment events

2. Extract Webhook Data

   • Use a Code Node to format the webhook response
   • Capture order, customer, and tracking details

3. Fetch Complete Order Information

   • Add an HTTP Request Node using Shopify Admin API
   • Include the order ID to retrieve customer phone, email, and product details

4. Clean the Phone Number

   • Use a Code Node to:
     • Remove non-numeric characters
     • Format number to international standard
     • Combine customer first and last name

5. Batch Process Orders

   • Use the Split In Batches node to handle customers one-by-one

6. Validate WhatsApp Number

   • Use Rapiwa’s /verify-whatsapp endpoint with a Bearer Token
   • Check if number exists on WhatsApp

7. Conditional Branching

   • Use an If Node:
     • If data.exists === "true" → Verified path
     • Else → Unverified path

8. Send WhatsApp Message

   • Send tracking info with a personalized message:

     Hi [Customer Name],
     Good news! Your order has just been fulfilled.
     Tracking Number: [Tracking Number]
     Track your package here: [Tracking URL]
     Thank you for shopping with us.
     -Team SpaGreen Creative
     

9. Log Data to Google Sheets

   • Log verified and unverified entries in separate sheets
   • Include all relevant customer and tracking data

10. Add Delay Between Messages

    • Use the Wait Node to avoid rate limits on Rapiwa API

Requirements

• A Shopify store with API access enabled
• A Google Sheet with required column like this ➤ Sample
• Rapiwa API account:
  • Connected WhatsApp number
  • Valid Bearer Token
• n8n with:
  • Shopify API credentials
  • Rapiwa Bearer Token
  • Google Sheets OAuth2 credentials

Google Sheet Column Reference

A Google Sheet formatted like this ➤ Sample

Workflow Logic Summary

1. Shopify Webhook Trigger: On order fulfillment
2. Extract Webhook Payload
3. Fetch Order + Customer Details
4. Clean and Format Phone Number
5. Split into Single-Item Batch
6. Check WhatsApp Validity via Rapiwa
7. If Verified:
   • Send WhatsApp Message
   • Log to verified sheet
8. If Not Verified:
   • Skip message
   • Log to unverified sheet
9. Add Delay with Wait Node
10. Repeat for Next Fulfillment

Customization Ideas

• Modify WhatsApp message to include delivery date or store contact
• Send different messages for different product categories
• Use product_type or shipping_zone to trigger separate workflows
• Add admin alerts for unverified numbers
• Store message delivery status (e.g., success, failed)

Notes & Warnings

• Rapiwa is an unofficial WhatsApp API — delivery reliability is not guaranteed
• The Google Sheet column name must include the space at the end
• Wait node may need longer delay for high-volume stores
• Always format phone numbers in international format (e.g., 8801XXXXXXXXX)
• Shopify API version used is 2025-07 — update as newer versions release
• You must comply with WhatsApp terms and data privacy laws when messaging users

Useful Links

• Dashboard: https://app.rapiwa.com
• Official Website: https://rapiwa.com
• Documentation: https://docs.rapiwa.com

Support

• WhatsApp Support: Chat Now
• Discord: Join SpaGreen Community
• Facebook Group: SpaGreen Support
• Website: https://spagreen.net
• Developer Portfolio: Codecanyon SpaGreen