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Use this guide when you try to connect the number in your WhatsApp Business app and Meta does not show “connect your existing WhatsApp Business app.” It may show “Crear una cuenta” or a virtual number instead. That does not mean Eva can convert your number into coexistence.

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What you will get

You will choose between three exits: try again, move the same number fully to the API, or connect an Eva number. Each exit has a different effect on the number you use today.

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Requirements

  • The phone with your WhatsApp Business app, if you want to keep the same number.
  • Access to the Facebook account you use to start the connection.
  • Access to SMS or calls for the number, if you move it to the API.

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Choose an exit

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Try coexistence again

Meta controls which sessions show the option to connect the existing app. Close the flow and try again later, or start again with another Facebook user who has business access. Meta may not show the option in the next session.

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Move the same number fully

This exit stops using that number in the WhatsApp Business app and moves it to the API. Deleting the account is irreversible: WhatsApp erases the chats, groups, business profile, backups and any WhatsApp Channel where that number is the only admin, and Eva does not import history through this path.
  1. Before anything else, save what you need: export the chats you want to keep (Android: chat → More → Export chat; iPhone: tap the contact or group name → Export chat) and write down the whole business profile (name, category, description, address, hours, email, website, photo).
  2. On the phone, delete the WhatsApp Business account and wait three minutes.
  3. Return to Eva: open your agent, go to WhatsApp and choose It is already on the WhatsApp API (another provider or my own Meta account). Enter the same number and receive the verification code by SMS or call. If you prefer a direct address while signed in to Eva, replace <agentId> with your agent ID: https://app.goeva.ai/agents/<agentId>/deploy/whatsapp?path=api opens with that answer already selected.
The number stays the same, but it no longer works in the app.

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Connect an Eva number

Select No tengo número (I do not have a number) to buy an Eva voice number for about 149 MXN per month. Meta connects that number through the BYON flow, with verification by call code. It is a new number: customers will not be writing to the number in your current app.

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Meta connected a different number

If Eva shows the mismatch card, review the number you confirmed, the number Meta returned, and the WhatsApp Business Account (WABA) ID. Choose Try coexistence again to retry, Use an Eva number to continue with a new number, or Migrate my number to move the same number to the API. Delete a WhatsApp Business account in Meta only when the card shows that the returned number is different from the one you confirmed and the WABA ID is not one you use elsewhere. If either fact does not match your situation, take one of the other exits; Eva never deletes an account for you.

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How to know it worked

Your chosen exit worked when Meta finishes its part and Eva shows the number as connected. For the existing number, check that messages arrive in the selected channel. For an Eva number, share the new number only after it appears connected.

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If something goes wrong

Do not enter the number in your app as a new number under “Crear una cuenta.” Meta may say it is already registered because it belongs to the app. Buttons on a site such as GetButton and wa.me links only open a WhatsApp chat; they do not connect the WhatsApp API. If Meta again offers only “Crear una cuenta” or a virtual number, return to the first exit or decide whether you want the full migration or a new number. Eva does not control which Meta screen appears and cannot release a number Meta keeps registered.

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Next steps