Adding a WhatsApp Button to Your Website: Benefits and Setup

In Türkiye, a WhatsApp button is one of the effective ways for small business sites to collect enquiries. The reason is simple: customers are on WhatsApp all day anyway. Sending a message in an app they already use feels easier than filling in a form and waiting. Our own experience points the same way: for service businesses, WhatsApp often gets used more than the contact form.

But there's also the badly set up WhatsApp button: one that opens an empty chat, doesn't say which page the visitor came from, and that nobody answers. A few small settings make the difference.

Creating a pre-filled link

WhatsApp offers a link format that opens a chat with a phone number directly: you add your number to the end of the wa.me address, with the country code and without a leading zero or plus sign. For 0532 123 45 67, that becomes 905321234567.

You can add a pre-filled message to the link too. That way the customer doesn't face an empty window wondering what to write. The message can change by page:

• On the homepage: “Hi, I'm contacting you from your website and would like some information.”
• On a service page: “Hi, I'd like a price for boiler servicing.”
• On a product or listing page: “Hi, I'd like information about listing 1245.”

Page-specific messages help you too: the moment you read the message, you know what the customer is interested in. Spaces and Turkish characters in the message are written in encoded form in the link; the team building the site or a link generator handles that.

Button placement and appearance

The bottom-right corner is the most common spot and the right one for most sites. Visitors are used to looking for the WhatsApp icon there. Make sure the button doesn't sit on top of something else: a cookie notice, an “add to cart” bar on a store or a chat bubble can cover each other.

The green WhatsApp icon is familiar enough to stand on its own. Adding a short label (“Ask on WhatsApp”) works on desktop, but takes up space on mobile.

Avoid buttons that bounce, wiggle or pulse every few seconds. They irritate more than they attract.

On desktop, clicking the button opens WhatsApp on the computer, not the phone (WhatsApp Web or the desktop app). That's usually fine, but on a B2B site where most visitors are on desktop, keep phone and email options visible as well.

Tracking clicks

The biggest drawback of a WhatsApp button is that tracking doesn't happen on its own. When a form is submitted, a thank-you page opens and it's easy to count; with a WhatsApp click, the visitor leaves the site.

The fix is to record the button click as an event in Google Analytics 4. If you use Google Tag Manager, you define a trigger that catches clicks on links containing “wa.me” and an event such as “whatsapp_click”. That event is then marked as a key event (conversion) in GA4. We walked through GA4 setup step by step in a separate post.

You'll then see which pages, and visitors from which sources, turn to WhatsApp. If you run Google Ads, this data is very useful for optimising campaigns too.

A click isn't a message. Some people back out once WhatsApp opens. Track how many real conversations start each month as well, using labels in WhatsApp Business or a simple spreadsheet.

Response time with WhatsApp Business

The button only works as long as someone answers. A customer who writes at 9 p.m. and gets no reply until noon the next day may well have messaged a competitor in the meantime.

At the time of writing, the WhatsApp Business app is free and offers a few tools that help here. A greeting message sends an automatic hello and short information to first-time contacts. An away message says “We got your message and will reply at 9 a.m.” outside working hours. Quick replies let you send ready answers to common questions in two taps. Labels sort conversations into groups such as “new enquiry” or “quote sent”.

Fill in your address, opening hours and website in the business profile as well. A customer who saw you on the site and finds the same details on WhatsApp trusts you more.

One note: a customer messaging you doesn't mean you can later send them campaign or promotional messages. Commercial messages may require separate consent; confirm your obligations under Türkiye's commercial message rules (İYS) and data protection law (KVKK) with your accountant or lawyer.

A WhatsApp button shouldn't fully replace the form. Some customers want to leave a written, formal request; some can't use WhatsApp on a work computer. Offer both side by side; you'll find how to design the contact form in a separate post.