The WhatsApp 24-hour service window is the rolling period after a guest sends a message to the hotel during which free-form replies are allowed; once the window closes, only Meta-pre-approved templates may be used.
The 24-hour service window, sometimes called the customer care window, is one of the most important rules on the WhatsApp Business Platform. Each time a guest sends a message to the hotel, a 24-hour countdown begins. Within this window, the hotel may reply with any free-form content: text, images, documents, voice notes, location pins, or interactive buttons. Once the window closes, the hotel can only re-engage the guest using a message template that has been submitted to and approved by Meta. The rule exists to protect users from unsolicited business messages and is enforced at the platform level by Meta itself.
For inbound enquiries the window is rarely a concern, because most conversations are resolved well within the first hour. The constraint becomes visible when the hotel wants to initiate contact, for example a pre-arrival upsell, a check-in reminder, or a feedback request after departure. These outbound moments fall outside any open window and therefore must be sent as approved templates. Hotels that run automated upselling or pre-arrival journey campaigns design their flows around this rule, opening a fresh window with a template message and then continuing the conversation in free-form once the guest replies.
The window is not a billing window, it is a permission window. Meta categorises each conversation as marketing, utility, authentication, or service, and bills the BSP accordingly. Replies inside an open service window are usually free or low-cost, while template-initiated conversations carry the standard category fee. Designing flows that maximise inbound triggers, such as a pre-stay welcome from the guest, can materially reduce WhatsApp costs for the hotel. Use the WhatsApp costs calculator to model the impact.
Viqal's AI Operator is engineered around the 24-hour rule. Outbound moments such as upsell offers and review requests are delivered through approved templates, and once the guest replies the conversation continues in free-form for as long as the window stays open. The platform also tracks each conversation's window state in the team inbox, so reception staff can see at a glance whether they may type freely or must select a template. This removes a common operational pitfall and keeps the hotel fully compliant with Meta's policies.
Any inbound message from the guest, whether text, button click, media, or a reply to a list, resets the 24-hour timer. Outbound messages from the hotel do not reset the window; only guest activity does.
Free-form replies are blocked by Meta once the window has expired. The hotel must instead send an approved message template, after which the guest's response will open a new 24-hour window during which free-form messaging resumes.
Templates are required only when the service window is closed or when the hotel is initiating a fresh conversation. Inside an open window, any free-form content is allowed, including media, interactive buttons, and quick replies.
The 24-hour service window applies to every business using the WhatsApp Business Platform via a BSP. It does not apply to the consumer WhatsApp app or to one-to-one personal chats; it is a Business Platform policy enforced by Meta.
Meta categorises conversations as marketing, utility, authentication, or service, and most service conversations initiated by the guest within the window are charged at a lower rate or are free under current pricing. Template-initiated conversations carry the relevant category fee.
Yes. Viqal's AI Operator tracks the window state per conversation and automatically chooses between an approved template and a free-form reply, ensuring every outbound message is compliant without manual checks by staff.
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