Start with permission

Message people who have a reason to expect it: they enquired, bought from you or asked you to contact them on WhatsApp. Adding people to broadcast lists because you have their number in a file is the fastest way to be reported.

Record how and when someone agreed, even if it is only a line in your CRM or sheet. Be clear about the kinds of messages you will send, such as order updates or appointment reminders, and stick to them.

Make opting out easy and honour it

Tell people they can say 'stop' at any time, and mean it. When someone opts out, mark it in your records straight away so no one else in the team messages them. Do not argue or ask why.

If you use WhatsApp Business tools or a provider for larger volumes, read the platform's current terms and your provider's guidance on consent and message types. They change from time to time.

Keep messages short, useful and personal

Write the way you would speak to a customer in person. Use their name, say who you are and why you are writing, and make one request. For example: 'Hello Meera, this is Ravi from [business]. Your quotation is ready. Shall I send it here or by email?'

Avoid long paragraphs, repeated forwards and heavy promotional images. If you have a lot to say, send a short summary with a link or a document.

  • One purpose per message
  • Clear name and business identity
  • A simple question or next step
  • No pressure or repeated nudges within hours

Respect time and boundaries

Send during reasonable hours unless the customer has said otherwise, and give them time to reply. A follow-up two hours after the first message feels pushy. A gap of a day or two feels natural for most non-urgent topics.

Do not share a customer's details in groups, and do not add people to groups without asking. Keep sensitive information, such as bank details, out of casual chat where a safer channel exists.

Treat it as part of your system, not a personal phone

If follow-ups live on one person's phone, they disappear when that person leaves or is on leave. Use a business number, agree who owns which conversations, and log key outcomes in your CRM or sheet.

Create a few approved message templates for common situations: enquiry acknowledgement, quote follow-up, delivery update and feedback request. Review them occasionally to make sure they still sound human.

Know when WhatsApp is the wrong channel

Some conversations belong elsewhere. Formal contracts, sensitive financial information, detailed technical documents and serious disputes usually need email, a call or a meeting, with a record kept properly. Use WhatsApp to arrange, confirm and nudge, and move to a better channel when the topic needs it.

Also pay attention to customers who rarely respond. If a customer has not replied to two messages, try a different channel or pause. Persistence on a channel that is not working is only noise, and it reflects poorly on your business.

WhatsApp works for follow-ups when it is permission-based, brief, easy to leave and recorded in your wider system. Check current platform policies and applicable rules, and take professional advice if you plan bulk or promotional messaging. Customer experience consulting can help design follow-up journeys, and sales consulting can connect them to your pipeline so that no enquiry is left waiting.