--- title: "WhatsApp Coexistence Explained: App + API on One Number" description: WhatsApp coexistence runs the Business app and the API on one number. What it costs, what syncs, what stops working, and the 14-day rule to know. image: https://haber.chat/hubfs/blog-featured-images/whatsapp-coexistence.jpeg --- [Skip to content](https://haber.chat/blog/whatsapp-coexistence#main-content) [![haber-chat-high-resolution-logo - Copy-1](https://haber.chat/hs-fs/hubfs/haber-chat-high-resolution-logo%20-%20Copy-1.png?width=120&height=117&name=haber-chat-high-resolution-logo%20-%20Copy-1.png "haber-chat-high-resolution-logo - Copy-1")](https://haber.chat/) [launch your Free Trial](https://haber.chat/signup-gateway) - [Pricing](https://haber.chat/pricing) - [Quick start](https://haber.chat/quick-start) - [Help Center](https://app.haber.chat/help) - [Reviews and badges](https://haber.chat/blog/whatsapp-coexistence#reviews) Open main navigation Close main navigation - [Pricing](https://haber.chat/pricing) - [Quick start](https://haber.chat/quick-start) - [Help Center](https://app.haber.chat/help) - [Reviews and badges](https://haber.chat/blog/whatsapp-coexistence#reviews) [Follow us on YouTube](https://www.youtube.com/channel/UCzYcDckdCetQtXFxNZ33qNQ) [Follow us on LinkedIn](https://www.linkedin.com/company/haberchat/) Oct 27, 2026, 10:00:00 AM # WhatsApp Coexistence Explained: Keep the App, Add the API ![Picture of HaberChat Team](https://haber.chat/hs-fs/hubfs/haber-chat-high-resolution-logo%20-%20Copy-1.png?width=50&name=haber-chat-high-resolution-logo%20-%20Copy-1.png) [HaberChat Team](https://haber.chat/blog/author/haberchat-team) Share: [facebook-f icon](http://www.facebook.com/share.php?u=https://haber.chat/blog/whatsapp-coexistence) [linkedin-in icon](http://www.linkedin.com/shareArticle?mini=true&url=https://haber.chat/blog/whatsapp-coexistence) [Twitter icon](https://twitter.com/intent/tweet?url=https://haber.chat/blog/whatsapp-coexistence) [pinterest-p icon](http://pinterest.com/pin/create/link/?url=https://haber.chat/blog/whatsapp-coexistence) [envelope icon](mailto:?body=https://haber.chat/blog/whatsapp-coexistence) WhatsApp coexistence lets one number run in the WhatsApp Business app and on the official WhatsApp Business API at the same time. You keep chatting from your phone as before, and the API adds templates, automation and a team inbox on top. Messages sent from the app stay free; messages sent through the API are billed by Meta. It's the answer for businesses that want API features but don't want to give up the app, their chat history or their number. It does come with conditions, which are worth knowing before you switch it on. ## How coexistence works Before coexistence, moving a number to the API meant removing it from the WhatsApp Business app. Now a business can onboard its existing app number to the Cloud API through a provider, and both stay active. In [Meta's developer documentation](https://developers.facebook.com/docs/whatsapp/embedded-signup/custom-flows/onboarding-business-app-users) (checked October 1, 2026), this is called onboarding WhatsApp Business app users. Once it's set up: - Messages appear both in the app on your phone and in your API tool. - Your WhatsApp contacts are synced to the API side. - If you opt in, up to 180 days of past one-to-one chats are copied over. - You can reply from either side, and the conversation stays in one thread for the customer. ## What it costs There are two kinds of messages on a coexistence number, and they're billed differently: - **Sent from the WhatsApp Business app:** free, as always. - **Sent through the API:** billed per message at [Meta's rates](https://developers.facebook.com/documentation/business-messaging/whatsapp/pricing/non-template-messages). Since October 1, 2026, that includes free-form replies inside the 24-hour window, charged at the market's utility rate. Your provider's plan comes on top. A practical pattern: use the API for templates, automated notifications and campaigns to opted-in customers, and keep everyday one-to-one replies in the app, where they're free. ## Requirements - **WhatsApp Business app version 2.24.17 or later**, on a number that's already active in the app. - **A provider that supports coexistence**, which Meta calls a Solution Partner or Tech Provider. HaberChat, respond.io, Wati and TimelinesAI all offer it. - **Business details that match your registration documents**, since you're connecting to Meta's business platform. - **A supported country.** Coexistence isn't available everywhere, and the list has changed over time, so check your provider's current list first. ## What changes in the app Coexistence keeps most of the app working, but some features are switched off or limited once the number is on the API: | Feature | With coexistence | | --- | --- | | One-to-one chats | Work in both the app and the API | | Group chats | Stay in the app; they don't sync to the API | | Broadcast lists | Become read-only; you can't create new ones | | Disappearing and view-once messages | Turned off | | Live location | Turned off | | Voice and video calls | Not supported on coexistence numbers | | Linked devices | Up to 4 companion devices; WhatsApp for Windows and Wear OS are unlinked | | Sending speed | Fixed at 20 messages per second | If your business relies on WhatsApp groups or phone calls, weigh that before switching. The 20 messages per second cap is far above what most small teams send, but it matters for very large campaigns. ## The rules that catch people out - **Open the app regularly.** The phone running the WhatsApp Business app has to stay in use. If the app isn't opened for about 14 days, the number can be disconnected from the API and you'd need to reconnect. - **Let the sync finish.** Keep the app open while history copies over. Meta allows 24 hours for the sync; if it doesn't finish, the onboarding has to be restarted. - **The 24-hour window starts fresh.** On the API side, the customer service window only opens when a customer messages you after the number was connected. Older chats don't count, so starting them again from the API needs an approved template. - **Old media may not come across.** HaberChat's help center notes that media older than 14 days doesn't sync. ## Coexistence vs a QR connection vs the API alone Coexistence sits between two other ways to give a team access to one number: - **QR connection:** link the WhatsApp Business app to a team inbox the way WhatsApp Web links a computer. No Meta approval and no per-message fees, but it isn't an official Meta integration, sending speed is limited and there are no templates. - **Coexistence:** official API features plus the app on the same number. Some app features are limited, and API messages are billed. - **API only:** the number leaves the app entirely. Best for high volume and automation, with Meta billing per message. We compare these in more depth in [WhatsApp Business app vs API](https://haber.chat/blog/whatsapp-business-app-vs-api). If your team mainly needs to share one number and reply to customers, a QR connection may be enough; see [how to share one WhatsApp Business number with your team](https://haber.chat/blog/share-whatsapp-business-number-with-team). ## Setting up coexistence in HaberChat HaberChat supports coexistence alongside QR and Cloud API connections. In short, you start the number connection, choose to share your chat history, keep the app open while it syncs, fill in your business details and approve the permissions Meta asks for. The full walkthrough is in our help center: [WhatsApp coexistence](https://app.haber.chat/help/coexistence). If you're comparing API tools that support it, see our guides to [respond.io alternatives](https://haber.chat/blog/respond-io-alternatives) and [Wati alternatives](https://haber.chat/blog/wati-alternatives). ## Frequently asked questions ### Can I use the WhatsApp Business app and the API on the same number? Yes, with coexistence. The number stays active in the app while it's connected to the API through a provider, and messages show up on both sides. ### Is coexistence free? Messages sent from the app are free. Messages sent through the API are billed per message by Meta, including replies inside the 24-hour window since October 1, 2026, and your provider's plan comes on top. ### Does my chat history move to the API? If you opt in, contacts and up to 180 days of one-to-one chat history are synced. Group chats don't sync. ### What stops working with coexistence? Voice and video calls, disappearing and view-once messages, and live location. Broadcast lists become read-only, groups stay in the app only, and WhatsApp for Windows and Wear OS are unlinked. ### What happens if I don't open the app? The phone app needs to stay in use. If it isn't opened for about 14 days, the number can be disconnected from the API and you'll need to reconnect it. ## Try HaberChat free for 7 days No credit card needed. Connect your number with a QR code, invite your team and see if it fits. 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