Messaging conversations started is a Meta Ads metric that counts how many times someone began a chat with your business in Messenger, Instagram Direct or WhatsApp after interacting with your ad. Its companion metric, cost per messaging conversation started, divides your spend by that count.
How messaging conversations started works
The metric belongs to click-to-message ads: campaigns that send people into a chat instead of to a website or form. You choose messaging apps as the place where the conversion happens, under an objective such as Engagement, Leads or Sales, and pick which apps people can use. When someone taps the ad, a chat opens with your greeting and, if you set them, a few ice breakers, short suggested questions they can tap instead of typing.
A conversation is counted when the person actually sends a message, not when the chat window opens. At the time of writing (October 2026), Meta only counts a new conversation started if there has been at least seven days of inactivity between that person and your business, so someone who messages three times in one week counts once.
The metric records the start of a chat only. Someone who sends “hi” and never replies counts exactly the same as someone who books a £500 job.
Why it matters
Many UK customers would rather send a quick message than fill in a form or make a phone call, and WhatsApp is particularly familiar. For businesses where the first step is a question (a salon checking availability, a removals firm pricing a move, a tutor discussing a child’s needs), click-to-WhatsApp ads and Messenger ads can produce conversations at a much lower cost than form fills.
The value depends almost entirely on what happens next. People who message expect a reply within minutes, not tomorrow afternoon. A business that answers quickly and asks good questions can turn chats into bookings efficiently. One that leaves them unanswered is paying for frustrated customers.
Chats also hold personal data. Under UK GDPR you need to know who on your team can read them, how long you keep them, and whether your privacy notice covers messaging. Running business chats from someone’s personal WhatsApp makes all of that harder.
Common mistakes
- Reporting conversations started as if they were leads.
- Launching chat ads with no one assigned to answer, or only checking messages at the end of the day.
- Using a generic greeting with no ice breakers, so people do not know what to ask.
- Never recording which chats turned into customers, so the campaign is judged on cost per conversation alone.
- Using a personal WhatsApp number that leaves the business when the employee does.
How to act on it
Before launching, choose the channel and the set-up. For low volumes, the WhatsApp Business app or the Messenger inbox in Meta Business Suite is enough. Higher volumes, several staff or a CRM connection usually call for the WhatsApp Business API through a provider. Agree response times and set an away message for evenings and weekends that says when you will reply.
Write ice breakers that move people towards a useful question, such as “Get a quote for an end-of-tenancy clean” rather than “Hi”. Label every conversation by outcome (qualified, booked, not relevant) and each week work out the cost per qualified conversation, not just per conversation started. Where your set-up allows, report purchases or leads from chats back to Meta so it can optimise for conversations that lead somewhere.
Building the chat flow and the reporting before the ads go live is how I run click-to-WhatsApp and Messenger ads.