WhatsApp AI agent: customer contact after hours

A customer sends you a WhatsApp message in the evening asking for a price estimate or when you can visit. You are on a job, having dinner or simply off work. With a WhatsApp AI agent, that first customer interaction does not get left unanswered, without pretending an assistant can replace your sales conversation.

The agent answers questions using the information you provide about your business. It can also carry out actions you allow, such as checking available times or booking an appointment. Does it not know the answer, is it a complaint, or does the customer ask for an employee? Then it hands the conversation over to your team.

What exactly does a WhatsApp AI agent do?

A WhatsApp AI agent is an assistant that handles incoming customer messages. It uses your knowledge base, including your services, service area, delivery times and frequently asked questions. That means customers do not have to wait until you have time to answer a simple question.

This only works when your business WhatsApp number is connected through the WhatsApp Business API. Messages then arrive in the same inbox as email and chat, are linked to the right customer, and colleagues can take over the conversation. Read the article on connecting WhatsApp Business to your customer management to understand the difference between this and simply having a WhatsApp button on your website.

You decide which tasks the agent can handle. For example:

• answering questions about your services, service area or way of working;
• asking intake questions, one at a time, to make an enquiry more complete;
• checking available times and booking, rescheduling or cancelling an appointment;
• checking the status of a quote or sending a quote link again;
• giving a price estimate based on your configurator pricing rules, if you enable that feature;
• recording customer details on the contact.

The agent does not invent business information you have not provided. And without a configurator with pricing rules, it cannot calculate a reliable price. In that case, it should simply say so and pass the question on to you.

How can you answer customer questions after hours without sounding impersonal?

Being available does not mean every conversation has to be fully automated. The best approach is often simple: the agent answers recurring questions, gathers the first details and makes sure the customer knows what happens next.

Say you install verandas. A customer sends you a WhatsApp message on Sunday evening: “How much does a patio cover of around 5 by 3 metres cost, and when can you come and measure up?” The agent can first ask about the desired width, depth and roof type. If you have allowed price estimates, it can give an amount based on your pricing rules and send a link to the configurator so the customer can explore the options further.

It then only checks the times you have made available. For example, it suggests two or three options. Once the customer chooses a time, the appointment is booked and the customer receives a confirmation. On Monday morning, you do not just see an isolated WhatsApp message, but a conversation with the context and possibly an appointment already in place.

For customers, this does not feel like a replacement for personal contact. They get immediate clarity on a practical question. The actual advice, measurement visit and discussion of special requirements remain with you.

When should an AI agent hand over to an employee?

A good handover is not an emergency measure. It is an essential part of reliable WhatsApp customer contact. Some questions require expertise, judgement or personal attention. The agent should not try to talk its way around those.

You can identify topics that should always go to a colleague. The agent also hands over when it does not know the answer, when a customer asks it to, or when sensitive topics such as complaints arise. The customer is told that a colleague will take over the conversation.

After the handover, the conversation appears in the inbox with a summary of what was discussed. An employee can read what the customer asked and continue where the agent stopped. You can also link an automation to it, such as a task or notification, so the conversation does not get overlooked after all.

That is the difference between answering WhatsApp messages automatically and trapping customers in an endless series of standard replies. The agent handles the first response and qualifies the enquiry. You or your colleague takes over when needed. Read more about that balance in automating AI customer contact without leaving customers stuck.

What information do you need to set up in advance?

The quality of an AI agent depends on what you give it. Do not start with every exception and long document. First, record the questions customers ask most often and that you can answer without risk.

Think about your service area, services, usual way of working, delivery times and conditions for a measurement appointment. Then decide which intake questions are needed before a salesperson or installer calls back. For a sun shading business, that could include the dimensions, type of sun shading and preferred controls.

Set clear limits as well. Can the agent only provide information? Or can it book appointments too? Can it provide an exact calculation, only give an estimate, or not discuss prices at all? You decide which actions are enabled, and all actions can be reviewed afterwards.

If you have many appointments where the first conversation starts the sales process, online booking can be a logical addition. See how you can let customers book appointments on your website, so your available times can be accessed outside WhatsApp too.

What can an AI agent not solve for you?

An AI agent is not a salesperson and not a replacement for professional expertise. It cannot assess whether a roof structure is suitable, resolve a complicated complaint or conduct a convincing sales conversation for a major purchase. Human contact is still needed for that.

Your knowledge base also needs to be accurate and up to date. If your delivery times change, your service area changes or you adjust your prices, update that information. The agent can only answer carefully based on what you make available.

So see the agent as a reliable first point of contact for messages that arrive when you cannot respond straight away. It keeps the conversation going, gathers context and hands it over to you at the right time. That way, your workday no longer starts with just scattered questions, but with conversations where a useful first step has already been taken.

Want to explore at your own pace which tasks an AI agent can handle in your customer contact, and where you set the limits? Start for free and see what Klantly can mean for your business.