Facebook Click-to-Message Ads: Setup, Objectives and Measurement

Facebook click-to-message ads are ads whose button opens a chat with the business in Messenger, Instagram Direct or WhatsApp instead of sending people to a website. Advertisers build them in Meta Ads Manager by choosing an objective that supports messaging, such as Engagement or Sales, setting the ad's destination to a messaging app, and then measuring results with messaging conversations started and the cost per conversation.

This guide walks through each part of the mechanism: picking the objective, writing the welcome message, reading the numbers, and the two questions Thai businesses ask most often, which are why lots of chats produce few sales and whether these ads can send people into LINE OA. Menu names and labels in Ads Manager change regularly, so it is safer to hold on to the principles than to memorise button positions.

What click-to-message ads are

Meta describes click-to-message ads as ads that send people who click directly into a conversation with the business's messaging accounts on Messenger, Instagram or WhatsApp. The ad itself appears in feed, Stories or Reels like any other ad. The difference is the call-to-action button, which is a send-message button. Tapping it opens the chat app with the welcome message the business has set up.

Each of the three destinations has its own conditions.

• Messenger: chats land in the Facebook Page inbox, so the business needs a Page and someone answering that inbox.
• Instagram Direct: chats land in the DM inbox of the Instagram account used for the ad. That account has to be connected to the Page or to the business account running the ads first.
• WhatsApp: Meta states that a WhatsApp Business number must be connected to the Facebook Page or to the business portfolio first. The connection can be made from the Facebook settings, from Ads Manager or from the WhatsApp Business app.

If a business answers chats on more than one channel, Meta lets it select several message destinations in the same ad, and the system picks the app the person is most likely to respond from. That is useful when the chat team can keep up with every inbox. If the team can only watch one inbox, choose one destination so chats do not pile up in a channel nobody is monitoring.

Which objective to choose: Engagement, Sales, Leads or Traffic

Ads Manager offers six objectives: Awareness, Traffic, Engagement, Leads, App promotion and Sales. Meta's Help Center says ads that click to Messenger work with four of them: Traffic, Engagement, Leads and Sales, with Leads used for collecting customer details through chat. The objective tells the system what kind of person to look for, so it directly affects chat quality. The table below summarises the differences based on Meta's own descriptions.

For a business that is just starting, Engagement is the most direct starting point, because Meta describes it as the objective for finding people likely to start a conversation. The system gets learning signals quickly. The limit is that the system has been told to find people who message, which is a different group from people who buy. The two overlap only in part.

Sales fits when the business wants the system to look past the first message. Meta has a performance goal called Maximise number of purchases through messaging, which its Help Center lists for ads that click to Messenger, Instagram Direct and WhatsApp. The option may not appear in every account. Meta's general eligibility rule is 10 or more purchase events shared within 30 days, and the same page says businesses in Thailand and Vietnam can use it without sending purchase events. If the account has no such data yet, starting on Engagement and moving to Sales later is the more sensible order.

Leads is different because the goal is contact information. Meta offers a lead generation format in Messenger that uses an automated chat to ask questions one at a time in place of a form, and it advises that six questions or fewer is usually optimal. This format suits service businesses that have to qualify a customer before quoting.

Setting up a click-to-message ad in Ads Manager

The setup follows the three levels of Ads Manager: campaign, ad set and ad.

1. Campaign level: create a new campaign and choose the objective using the table above.
2. Ad set level: set the ad's destination to messaging apps. Meta's documentation calls this section messaging apps or message destinations. Select the apps you want, set the optimisation toward conversations, then define the audience, budget and schedule.
3. Ad level: choose the Page and Instagram account, add the image or video and the ad text, then set the message template, which is the first set of messages the customer sees when the chat opens.

Preview the ad in the real app before publishing, every time. Tapping the ad on your own phone shows whether the welcome message appears correctly, whether the question buttons work, and whether the test chat arrives in the inbox the team is actually watching. It takes a few minutes and prevents lost chats from day one.

Setting the welcome message and automated questions

The welcome message is the first thing a customer sees after tapping the ad. Meta recommends a greeting that prompts people to reply, or an automated response so customers get information immediately, such as live chat hours or answers to questions customers frequently ask.

The message template has three main parts.

• Greeting: say who the customer is talking to and what the next step is. "Hi, tell us the model you are interested in or send a photo" works better than a bare hello that leaves the customer unsure what to answer.
• Preset questions: question buttons the customer can tap without typing. Meta's developer documentation calls these icebreakers and limits the question title to 80 characters and the response to 300 characters.
• Automated answers: the message sent instantly when the customer taps a question. Use them for things with a fixed answer, such as starting price, delivery area or booking steps.

Preset questions should come from what customers really ask in the inbox, not from what the business wishes they would ask. To find them, open past chats and count which questions repeat most. Price, how to order and delivery time usually sit near the top.

The message the business receives from the customer side can be set too. If nothing is set, Meta's documentation shows the default customer message is a generic request for more information, which does not say which product the customer cares about. Tying the preset questions to the product in the ad gives the person answering the chat context from the first message.

How to measure: messaging conversations started and cost per conversation

The main number for this ad type is messaging conversations started. Meta defines it as the number of times people started messaging the business after at least 7 days of inactivity, attributed to ads. So it includes people who have never messaged before and existing customers who come back after at least 7 days of silence. Meta also states that the metric does not include conversations started from ads delivered to or from Europe or Japan, and that for WhatsApp Business it only includes conversations started from clicks on the ad.

The companion number is cost per messaging conversation started, often shortened to cost per conversation. It is spend divided by conversations started, the same logic as cost per result, which Meta defines as the amount spent in the selected period divided by the number of results, where results depend on the objective chosen. If the column is not in your table, add it through the customise columns menu and search for the metric name.

The limit to understand is that this number says a conversation began. It does not say the person is a good prospect, and it does not say whether a sale happened. The business has to keep a second layer of numbers itself: how many chats continued to a price or detail request, how many orders came in, and how much revenue came from ad chats.

An illustrative example to show the method, not a market benchmark: suppose a budget of 3,000 baht produces 60 conversations started. The cost per conversation is 50 baht. If 6 of those 60 chats become orders, the cost per order is 500 baht. Another ad set might show a cost per conversation of 30 baht but close only 2 orders from the same budget, which is 1,500 baht per order. The ad set that looks cheaper in Ads Manager is the more expensive one when measured on sales.

Why lots of chats do not turn into sales

This problem usually comes down to causes that can be checked one by one.

• The system was told to find people who message: when the optimisation is conversations, the system finds people who tap easily, including people who message every ad and rarely buy. The fix is to feed the system a deeper signal when the account supports it, or to change the ad so it filters people before they tap.
• The ad leaves out what people need to decide: if the ad does not show price, size or service area, many people message to ask the basics and vanish once they know. Putting a starting price in the ad lowers chat volume, but the chats that remain have already passed one filter.
• Slow replies: someone who taps an ad is interested at that moment. If the first real answer arrives hours later, the customer may have closed the app. Automated messages cover the first question but do not replace a person for the next one.
• Audience wider than the product: for a product sold only in one area or to one group, a nationwide audience brings chats from people who could never buy.
• No record of what happened after the chat: if nobody notes which chats became orders, ad sets can only be compared on cost per conversation, which, as the example above shows, can point at the wrong one.

A check you can do today: read 20 to 30 chats from the ads at random and group them by where they ended, for example messaged then silent, asked the price then silent, or asked for payment details and never paid. The point where most chats end tells you whether to fix the ad, the welcome message or the closing process.

Can it connect to LINE OA?

The chat destinations Meta lists for click-to-message ads are three apps: Messenger, Instagram and WhatsApp. LINE is not on the list. An ad cannot open a LINE OA chat the way it opens Messenger, and messaging conversations started does not count chats that happen in LINE.

There are two workable alternatives.

• Run a website-destination ad and use the LINE OA add-friend link as the destination: Meta's system treats this as an ordinary link click and can only measure clicks. The number of people who really added the account has to be read on the LINE Official Account Manager side, and the two figures will not match because some people click without adding.
• Take the chat in Messenger first, then invite the customer to add the LINE OA afterwards: the system still counts conversations and can optimise fully, and LINE OA becomes the channel for looking after existing customers, sending updates and repeat sales.

The first option gives up the signal the system learns from. The second adds one step for the customer. Neither is better in every case. A business whose existing customer base already lives in LINE and that wants friend adds directly may also consider LINE's own advertising system alongside. For structuring the LINE side to receive customers who arrive from ads, see the LINE Official Account service.

Which businesses in Thailand it suits

A good many Thai online shops take orders and bank transfers in chat with no checkout page at all. Ads that send people into chat fit the way these shops already sell, with no need to build a website first. The businesses that benefit most share one trait: the customer has to ask something before buying.

• Products with many options or made to order, such as clothing where size has to be checked, custom furniture or engraved gifts
• Services that need an assessment before a quote, such as clinics, renovation, insurance or courses
• High-value items where the customer wants to talk to a person before deciding, such as property or cars
• Local businesses that take bookings or orders by chat, such as restaurants and salons

These ads do not suit a business with nobody to answer chats, or low-priced products where the margin per item cannot pay for the person replying. In that case, sending people to a checkout page that completes on its own is better value. Staffing during the hours the ad runs also needs thinking about from the start. If the team answers only during business hours, set an automated message that states when someone will reply, or schedule the ads to match the hours the inbox is staffed.

A business advertising on several platforms at once should give each channel a clear role: which one finds new customers and which one looks after existing ones. An overview of that kind of planning is on the Social Ads service page.

Frequently asked questions about click-to-message ads

Do Facebook click-to-message ads need a website?

No, because the ad's destination is a chat in Messenger, Instagram or WhatsApp, not a web page. What you need is a Facebook Page, an ad account with a payment method set up, and people ready to answer chats. If WhatsApp is the destination, the Page has to be connected to a WhatsApp Business number first.

Should I choose Engagement or Sales?

A business that is just starting and has no purchase data flowing back into the system should begin with Engagement, because Meta describes it as the objective for finding people likely to start a conversation. Sales fits once the account has purchase signals for the system to learn from. Either way, measure on sales from chat, not on chat volume alone.

How is messaging conversations started counted?

Meta counts the number of times people started messaging the business after at least 7 days of inactivity, attributed to ads. An existing customer who returns after at least 7 days of silence is counted too. Someone who has been chatting with the Page within the last 7 days and taps the ad again is not counted as a new conversation.

What is a good cost per chat?

There is no single figure that works for every business, because an acceptable cost per chat depends on profit per order and the rate at which chats become sales. Start from the cost per order the business can accept and multiply it by the share of chats that really close. The result is that business's own ceiling for cost per chat.

Can an ad send people straight into LINE OA chat?

Not as a click-to-message ad, because the chat destinations Meta supports are Messenger, Instagram and WhatsApp only. The alternatives are a link ad pointing to the LINE OA add-friend link, where Meta can measure only clicks, or taking the chat in Messenger and inviting the customer to add LINE afterwards.

Summary and next step

Ads that send people into chat work when three parts connect: an objective that matches what you want the system to find, a welcome message that leads the customer to the next question, and a team that replies in time and records which chats became sales. The numbers in Ads Manager tell the first half of the story. The other half is in the inbox.

Businesses that want specialists to structure the campaigns, set up measurement and keep adjusting the ads can look at Relevant Audience's Facebook Ads service, or read the full scope on the Facebook advertising for business page before contacting the team.