How do I start a conversation with a customer on WhatsApp?

Let them start it. Share a chat link or QR code where they already look for you, and reply quickly when they write.

Is it OK to message customers on WhatsApp first?

Only if they asked you to or gave you their number for that. WhatsApp tells you to message people who contacted you first or asked to be contacted.

How long should a business WhatsApp message be?

A few short lines with one question or one next step. Longer messages get skimmed on a phone.

How do I follow up on WhatsApp without being annoying?

Follow up when you said you would, make each message useful on its own, and stop after one or two tries if they go quiet or ask you to stop.

When should I call instead of chatting on WhatsApp?

When a question has gone back and forth three times, when money or a complaint is involved, or when you need several answers before you can quote.

Customer conversations on WhatsApp: start, reply, follow up

What makes a WhatsApp conversation with a customer go well

A good conversation in WhatsApp with a customer has three things going for it. They started it, or asked you to. Each message you send moves one step forward: a question answered, a time agreed, a quote sent. And when you say you'll get back to them, you do, on the day you said.

Skip the first and your number is at risk too: WhatsApp's page on using WhatsApp responsibly says unwanted or bulk messages can get an account banned.

Let them send the first message

The safest and most useful conversation is the one the customer starts. WhatsApp's page tells you to message only people who contacted you first or asked you to, and to give out your number so they can write to you.

There are more ways to make that easy than most sellers use. WhatsApp's Business features page gives you three ways in, and the first two are free:

A short link or QR code that opens a chat with you. The WhatsApp link generator makes both, with your first message typed in.
A button on your Facebook Page or Instagram profile.
Paid ads on Facebook and Instagram that open a WhatsApp chat with you.

Put the link where people already decide to get in touch: your website's contact page, your email signature, the last page of a proposal, a QR code on the table at an event. A prospect who taps it has already said yes to hearing from you, and that changes how every later message lands.

Your first reply

The first reply sets the tone, and speed matters more than polish. A prospect who asks you a question has often asked a competitor the same one, and the first useful answer usually gets the next message.

A good first reply does three jobs in a few lines:

Greets them by name and says who you are.
Answers the question they asked, or says when you'll have the answer.
Asks one question that moves things on, such as when they'd like to start or what they've tried so far.

When you're on calls, let the app answer first. The WhatsApp Business app's away messages go out on their own outside your business hours or on a custom schedule, and you can send them only to people who aren't in your address book, so regular clients don't get one. An enquiry outside your hours gets "Thanks, I'll reply by 10am" instead of silence. The features page also lists a greeting, sent on its own when a new customer starts a chat. Keep it to one line that says who you are, because your real reply still has to follow.

Replies that move the sale on

Plenty of WhatsApp chats stall in the middle, after the friendly start and before anything is agreed. These habits keep them moving:

Habit	Why it works	Instead of
One question per message	People answer one thing on a phone	Four questions in one block
Short paragraphs, a few lines each	Easy to read between other chats	A wall of text that gets skimmed
A clear next step in every message	The customer knows what you need from them	"Let me know if you have questions"
Their name, and a detail they told you	Shows you remember them	A message you would send to anyone
Quick replies for the facts you repeat	Price, hours and location in two taps	Retyping the same answer eight times a day

Write the way you'd talk to them across a desk: friendly and plain, with no slang you wouldn't say out loud. Both come with the WhatsApp Business app. Set up quick replies for the answers you type every day, and use labels such as "quote sent" or "call booked" to filter the chat list for everyone waiting on the same thing, which turns Friday's pipeline check into one tap per stage.

Five messages worth saving

You'll write these over and over, so save your own version of each as a quick reply and change one detail each time you send it. Keep them short enough to read on a lock screen.

First reply: Hi Sarah, thanks for getting in touch. The 12-week plan starts on the 3rd and 17th of each month. Which suits you better?

After a call: Thanks for the chat, Sarah. As agreed: I'll send the plan by Thursday, and you'll check the dates with your team.

Quote follow-up: Hi Sarah, the quote's still open. One thing I didn't mention: the first session can be online if that's easier.

Before a meeting: Looking forward to tomorrow at 3pm. Here's the address and a map pin. Reply here if anything changes.

Closing the loop: Hi Sarah, I won't keep messaging about this. If the timing changes, I'm one message away.

The last one matters more than it looks. Ending a quiet conversation politely leaves the door open, and people do come back to a seller who didn't chase them.

Voice notes, pictures and documents

WhatsApp makes it easy to send more than text, and each format has its moment:

Voice notes suit a warm reply to someone you already know. For a first reply, or for anything with a price or a date in it, write it instead, because people can't skim a recording and often can't play one at work.
Pictures help when they replace a description: a floor plan, a product in use, the screen they should tap.
Quotes and proposals go best as a document, sent with one line saying what's in it and what you need back.

A picture or a PDF on its own is a dead end. Send it with the next step in the same message: "Here's the quote. Can you confirm the start date by Friday?"

When to switch to a call

Some conversations shouldn't stay in chat. Switch when:

The same question has gone back and forth three times without landing.
There's money, a contract or a complaint involved, where tone matters.
They've written a long message that sounds unsure or upset.
You need several answers before you can quote, and a five-minute call gets them all at once.

Ask first rather than ringing out of nowhere: "Easier to talk this through? I'm free at 3 or 5 today." Then write one line in the chat after the call with what you agreed, so both of you have it.

Following up without nagging

A chat that goes quiet isn't a no. The follow-up that works is specific and promised: "I'll send the revised quote by Thursday" followed by the quote on Thursday.

When someone goes quiet, one or two follow-ups spaced a few days apart is plenty, and a written follow-up process stops you guessing how many. Make each one useful on its own, with a new detail or a simple question, rather than "just checking in". If someone asks you to stop, stop: WhatsApp's page says to remove them from your contacts and not message them again.

Made-up example: Priya coaches runners, and 15 new enquiries a week reach her through the chat link in her Instagram bio.

Before, she answered each one with a long message about her programmes, then waited. Half went quiet after her first reply, and she rarely followed up because she couldn't remember who was waiting.

Now her first reply is three lines: their name, the answer to what they asked, and "Would a 15-minute call on Thursday or Friday help?" She labels each chat "new", "call booked" or "quote sent".

Every Monday she filters by "quote sent" and sends each person one line with a new detail, such as a start date that's filling up. The ones who say no get a thank-you and no more messages.

Four habits that cost you trust

Customers notice these before WhatsApp does, and its responsible-use page warns against all four:

Adding customers to a group without asking. Ask first, and if someone leaves, let them go.
Sharing one customer's number with another, or messaging numbers from a list you didn't collect.
Sending broadcast after broadcast. Frequent broadcasts get reported, and WhatsApp bans numbers that are reported multiple times.
Forwarding anything you haven't checked yourself. WhatsApp labels forwarded messages, so the customer can see it didn't come from you.

Business Broadcasts, in the countries that have them, reach people who never saved your number. Send one only to people who asked to hear from you, the same as any other message.

Groups suit a class, an event or a community. A sales conversation belongs in a one-to-one chat, where the customer can be frank about budget and timing.

Keeping track once there are dozens

Ten chats fit in your head. Fifty don't. At that point the chat list, which sorts by the latest message, stops showing you who's waiting on you and who you promised to call back.

The fix is to keep a record outside the chat list: who each person is, where things stand and the next date. A spreadsheet works for a while, and a CRM that holds the chat itself works for longer. ActivityTracker is one way to do it: its WhatsApp integration links the number you already use as a device and shows each client's chat on their record. It isn't one of WhatsApp's own apps, and WhatsApp's linked devices page warns that "linking your device through unofficial apps or websites may put your account at risk." The same page says linking to one "may result in a temporary or permanent account ban." So ActivityTracker spaces out the messages your number starts on its own, and stops them if WhatsApp warns the number.

When the chats outgrow one phone, ActivityTracker's WhatsApp team inbox puts every number you use in one list and shows which customers are still waiting on your reply.

See the team inbox

What to do first

Today, put your chat link in your email signature and on your website's contact page. Save the five messages above as quick replies, and make three labels: "new", "quote sent" and "call booked". On Friday, filter by "quote sent" and send each person one line with a new detail. The ones who answer are your calls for Monday morning.