Keep your WhatsApp
Can you keep your WhatsApp with an AI agent?
With Eva's coexistence you keep your WhatsApp with an AI agent: the number and the app stay yours, and your team keeps answering from the phone.
The fear is specific: to keep your WhatsApp with an AI agent, do you have to hand over the number and lose the app? With Eva's coexistence, no. The number stays yours, the WhatsApp Business app stays on the phone, and your team keeps answering there exactly as it did yesterday.
What changes is that the work is finally recorded. Eva mirrors both directions: what you write in the app appears in Eva, and what Eva or your team writes from the inbox reaches the customer in the same chat. Eva becomes the system of record, with every conversation linked to its contact and its opportunity.
Coexistence is one way to connect WhatsApp to Eva, not the only one and not one we rank above the rest. If you would rather connect a new number straight to the API, that works too.
Before and after
Today
The number that works lives on one phone. The history is there, the salesperson answers there, and nobody else sees any of it. When that person leaves, the conversation leaves with the phone.
With Eva
Same number, same app, same salesperson answering from their phone. The difference is that every message lands in Eva, tied to the contact and the opportunity, and whoever runs the business can finally see what is happening without asking for screenshots.
How it works
- 1. Connect your own number and stay on your phone
The connection runs through Meta's embedded signup, using the number already on the WhatsApp Business app. Afterwards your team keeps answering from the phone as before: those sends carry no 24-hour window and no template cost.
- 2. Eva mirrors the conversation both ways
What you write in the app appears in Eva, and what Eva or your team writes from the inbox appears in the customer's chat. Eva becomes the system of record: contacts, conversations and opportunities in one place, without the salesperson changing tools.
- 3. You decide whether Eva answers for you, number by number
The «Eva contesta por mí» switch sits on each seller-number card. With it on, Eva answers new customer messages; the moment you reply from the app, that conversation is yours and Eva stays quiet until somebody uses «Volver a Eva» to hand it back.
What Eva needs
- A number currently on the WhatsApp Business app that passes Meta's eligibility check.
- Sign-up completed by the person who owns the number: the preflight check and the wizard's nine disclosures covering what changes, what you must do and what can happen.
- Time for the guided history import: Meta allows one six-month import, and that is the entire backfill available.
- Real activity in the app: the number needs a signal from the phone roughly every thirteen days to avoid going inactive.
Good to know
- Meta decides eligibility. If the number does not qualify it does not connect, and Meta also decides temporary limits, restrictions and the number's quality rating.
- The six-month import is the only history recovery Meta allows. If it stalls, Eva shows it as a partial import instead of pretending it finished.
- Syncing can have gaps, and Eva marks them on the conversation with a visible badge instead of claiming completeness it cannot prove.
- Meta mirrors text, images, video, documents, edits and deletions. An audio note, a sticker, a reaction or a location sent from the app is not mirrored into Eva.
- Groups stay on the phone. Connecting unlinks companion devices, and the Windows and WearOS ones cannot be linked again.
- Sends from the app carry no 24-hour window. Sends from the Eva inbox outside that window follow the usual approved-template rule, and bulk campaigns cannot go out from a coexisted number, which protects its quality rating.
- Mirrored messages consume zero Eva message credits; the AI work does consume credits.
- Other platforms document their own coexistence route, among them Manychat, Wati and Whaticket. Chatbase documents the opposite for its integration: that number cannot stay on the WhatsApp Business app (chatbase.co, WhatsApp guide, accessed 9 September 2026). If your provider asks you to drop the app, that is their condition, not a WhatsApp rule.
online sales in six months
Serviacero Comercial, a steel distributor, multiplied its online sales more than fourfold in six months with Eva answering and quoting immediately.
Read the full storyRelated pages
Put Eva to work.
Tell us which number you use in the app today and we will tell you whether it is eligible and what would happen to your history.
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