# Send Dynamic PDFs via DoubleTick WhatsApp Broadcast Using Google Sheets
**Step 1: Install DoubleTick WA Broadcast Extension**
1. Open the Google Sheet containing your customer data.
2. Go to Extensions in the top menu.
3. Click on Add-ons > Get add-ons.
4. In the search bar, type DoubleTick WA Broadcast.
5. Select DoubleTick WA Broadcast and click Install.
6. Once installation is complete, close the add-on pop-up window.\
**Step 2: Launch DoubleTick WA Broadcast Extension**
1. Go to Extensions in Google Sheets.
2. Select DoubleTick WA Broadcast and click Send WhatsApp Message\
**Step 3: Configure Message Settings**
1. Select Rows:
* To send the message to specific rows, choose Select Rows.
* To send the message to all customers listed in the sheet, select Entire Sheet.
2. Map the Fields: Use the dropdown menus to map each field accurately:
* Phone Number: Select the column containing customer phone numbers.
* Customer Name: Select the column with customer names.
* PDF Column: Select the column where PDF links are stored.
**Step 4: Choose the Message Template and Channel**
1. Select a Template: Choose the template you want to send to your customers from the dropdown.
2. Select Channel: Choose the appropriate channel name to send the message.
**Step 5: Send the Message**
1. After configuring all the options, click Send Message.
2. The DoubleTick extension will start sending personalised WhatsApp messages with the dynamic PDFs attached.
