WHATSAPP BUTTON / SUPPORT
Help with your WhatsApp Button.
Set up your button, make it yours, and find answers to common questions.
Getting started
How do I install it?
Add the app from the Shopify App Store, then open your theme editor. Find the WhatsApp Button under App embeds, toggle it on, and configure it there.
How do I set my number and prefilled message?
In the app embed settings, enter your WhatsApp number with the country code. Add the message shoppers start with, for example: “Hi, I came from your website and need help with my order.”
Can I add more than one number?
Yes, up to 5. Give each contact a name, WhatsApp number, short card label, and its own prefilled message. With one contact, the button opens WhatsApp directly. With several, shoppers choose a contact from a popup.
Appearance and behavior
Can I change how the button looks?
Choose an icon-only button, an icon with “WhatsApp,” or an icon with custom text. Adjust button and text colors, size, spacing from screen edges, and bottom-left or bottom-right placement. Use the default visual style if you prefer not to set your own colors.
Can I show it only on desktop or only on mobile?
Yes. Desktop and mobile each have their own show or hide toggle.
Can I customize the popup?
With multiple contacts, you can edit the title and subtitle, including a separate mobile subtitle. Customize background, text, secondary text, accent, hover, and border colors. Each contact appears as a compact card with a WhatsApp button. Use “keep popup open” while styling it in the theme editor.
What is the inactivity auto-open?
This optional setting opens the contact popup after a period without interaction, 10 seconds by default. Scrolling, clicking, mouse movement, touch, or keyboard use resets the timer. It runs once per page view.
Can I set business hours?
Yes. Choose every day, Monday to Friday, or Saturday and Sunday, then set opening and closing times in 24-hour format. Optionally enter a timezone, such as America/Sao_Paulo; leave it blank to use your store’s local time. Set separate availability notes for open and closed hours, with shorter versions for mobile.
Privacy and removal
Will it slow down my store?
The button uses a small amount of CSS and JavaScript on the shopper’s device. It does not call bKlug’s servers when a page loads.
Does it collect my customers’ data?
No. The button opens WhatsApp on the shopper’s device. It sets no cookies and sends no visitor data to bKlug. See the privacy policy for details.
How do I remove it?
Turn off the app embed in your theme editor, or uninstall the app from your Shopify admin. The button disappears from your storefront.