How to Send WhatsApp Bulk Messages
from CSV File

This is the most critical step. A well-prepared CSV file ensures a smooth process. Learn how to send personalized messages safely.

Step 1: Prepare Your CSV File for a Flawless Campaign

1. Open a spreadsheet program like Google Sheets or Microsoft Excel.
2. Create your headers in the first row. The most important header is for the phone numbers. Let’s call it mobile.
3. Crucial Formatting: Ensure all phone numbers include the country code but without the + sign or spaces.
   ✅ Correct: 14155552671 (US)

   ✅ Correct: 919876543210 (India)

   ❌ Incorrect: +1 (415) 555-2671

   ❌ Incorrect: 09876543210
4. Add Columns for Personalization: Add headers like name, city, or order_id.
5. Save/Export the file as a .CSV file.

Step 2: Install the Extension

Go to the Chrome Web Store and search for HappyInAI WhatsApp Bulk Message Sender. Click “Add to Chrome” to install.

Step 3: Open WhatsApp Web and the Extension

1. Navigate to web.whatsapp.com.
2. Scan the QR code to link your device.
3. Click on the HappyInAI extension icon in your toolbar to open the panel.

Step 4: Upload Your Prepared CSV File

In the panel, click the “Upload CSV” button and select the file you created in Step 1. The extension will automatically read your headers.

Step 5: Compose Your Personalized Message

Use placeholder variables that match your CSV headers exactly with double curly braces.

Step 6: Configure Safety Settings

Set a minimum and maximum delay in seconds (e.g., 10 to 25 seconds). The tool will wait a random time between messages to mimic human behavior.

Step 7: Click Send!

Click "Send Message" and watch the extension work its magic live in your WhatsApp Web window.