WhatsApp Button

Add a floating “Chat on WhatsApp” button to any website. One click opens a WhatsApp conversation with a pre-filled message — the simplest way to start conversations from your site.

How It Works

Add a single script tag to your website
A floating WhatsApp button appears in the corner
Visitors click it and WhatsApp opens with a pre-filled message
The conversation flows into your SendHub inbox

No API keys, no tokens, no backend. Just a phone number and a script tag.

Setup

Paste this before the closing </body> tag:

<script
  src="https://sendhub.ai/wa-button.js"
  data-phone="14155551234"
  data-message="Hi, I have a question"
  data-color="#25D366"
  data-label="Chat with us"
  data-position="right"
  async
></script>

Replace 14155551234 with your WhatsApp number (country code, no +).

Configuration

Attribute	Required	Default	Description
`data-phone`	Yes	—	WhatsApp number (country code without +)
`data-message`	No	`Hi, I have a question`	Pre-filled message in WhatsApp
`data-label`	No	`Chat with us`	Button text
`data-color`	No	`#25D366`	Button color (WhatsApp green)
`data-position`	No	`right`	`left` or `right` corner
`data-offset-bottom`	No	`24`	Pixels from bottom edge
`data-offset-side`	No	`24`	Pixels from side edge
`data-hide-label-mobile`	No	`true`	Show icon only on mobile
`data-include-product-name`	No	`true`	Append product name on product pages (Shopify)

Shopify Theme Editor

If you use Shopify, no code needed:

Go to Online Store > Themes > Customize
Add the SendHub WhatsApp Button block
Enter your WhatsApp number
Customize label, color, and position
Save and publish

Feature	WhatsApp Button	Web Chat Widget
Interaction	Opens WhatsApp app	Chat in browser
AI replies	Via your WhatsApp channel	Built-in AI
Visitor info needed	Has WhatsApp	Anonymous
Setup	Phone number only	Widget token from dashboard
Best for	Direct WhatsApp contact	Website-first conversations

Use the button when you want visitors on WhatsApp. Use the widget when you want them chatting on your site.

Troubleshooting

Button doesn’t appear

Check data-phone is set with a valid number
Verify the script URL is correct

WhatsApp doesn’t open