In detail
Opt-in is a hard requirement of the WhatsApp Business Platform. Before you send any business-initiated message — a template notification, an offer, a reminder — the customer must have actively agreed to receive messages from your business on WhatsApp. This is not optional and is central to keeping the channel trusted.
Valid opt-in means the customer took a clear, affirmative action indicating they want your WhatsApp messages: ticking an unticked checkbox, submitting a form, replying to confirm, or clicking a clearly labelled button. The request must state that messages will come via WhatsApp and, ideally, what kind (order updates, marketing, etc.). Pre-ticked boxes and buried consent do not qualify.
You should record the opt-in: when it was collected, through which channel or touchpoint, and the exact wording shown. This record matters if Meta ever reviews your account or a customer disputes messaging, and it is good practice for data-protection compliance generally.
Opt-in can be collected almost anywhere your customer already interacts with you — website forms, checkout, in-store QR codes, your app, or a message the customer sends you first. What matters is that consent is explicit and logged.
Skipping opt-in is one of the fastest ways to damage an account. Messaging people who did not agree drives blocks and reports, which lower your quality rating, cap your messaging tier and can get the number restricted or banned. Clean, well-recorded opt-in is the foundation of deliverability at scale.
Key points
- Opt-in is mandatory before any business-initiated WhatsApp message.
- Consent must be active and clear — no pre-ticked boxes or buried terms.
- State that messages come via WhatsApp, and ideally the message type.
- Record when, where and how each opt-in was collected.
- Missing opt-in drives blocks and reports that harm quality and limits.
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