Use WhatsApp Business App and API Simultaneously (Coexistence)

You use the WhatsApp Business App on your phone for daily customer communication — chats, away messages, calls — and now want to connect the same number to meetergo for automated appointment reminders and follow-ups?

Good news: you can do this without losing anything. Since May 2025, Meta officially supports WhatsApp Coexistence — the WhatsApp Business App and the WhatsApp Business API run side by side on the same number.

What does Coexistence mean?

Both run simultaneously. You lose neither chats, contacts, nor functionality.

What you need

• A meetergo Premium plan or higher
• A Facebook / Meta account (a personal account is fine)
• The WhatsApp Business App on your smartphone (version 2.24.17 or newer)
• Your number must have been active in the WhatsApp Business App for at least 7 days

Step-by-step guide

Step 1: Start the connection in meetergo

1. Go to Integrations & Apps
2. Find WhatsApp Business and click Connect
3. Click the green Connect existing WhatsApp Business App button
4. A Meta popup opens

Step 2: Sign in to Meta

5. Sign in with your Facebook account
6. If you don't have a Meta Business Account yet, the popup will guide you through creating one — just enter your company name and confirm

Step 3: Create a WhatsApp Business Account (WABA)

7. The popup asks for a WhatsApp Business Account — click "Create"
8. Enter a name (e.g. your company name) and select your time zone and currency

Step 4: Enter your phone number

9. Select your country code (e.g. Germany +49)
10. Manually enter your WhatsApp Business number

Step 5: Scan QR code and confirm

11. A QR code appears on your screen
12. Open the WhatsApp Business App on your smartphone
13. You'll receive a message with a "Scan QR code" button — tap it
14. Scan the QR code from your screen
15. Optional: choose whether to share your existing chats (up to 6 months) with the API
16. Confirm the connection

Step 6: Register the number in meetergo

The coexistence flow hands meetergo your WhatsApp Business Account but no phone number, so meetergo saves the connection and shows an amber WhatsApp Business connected, add a phone number to start sending notice until you register the number yourself with its 6-digit PIN. Follow Step 2: Register your phone number, and until the badge next to the number reads Connected, workflows send nothing.

Done! Your number is now connected to meetergo, and your WhatsApp Business App continues to work as usual.

After connecting

• Your WhatsApp Business App works as before — chats, away messages, calls, everything stays
• meetergo sends automated messages (reminders, confirmations, follow-ups) via the API in the background
• Messages are synchronized between the app and the API

Next steps

Now that your number is connected:

1. Create message templates — WhatsApp requires pre-approved templates for automated messages
2. Set up workflows — Link templates to triggers (e.g. "24h before appointment", "After booking")

See Connect WhatsApp directly – Send Reminders & Follow-Ups for the full guide.

Switching from another provider (e.g. Superchat)

If your number is currently connected to the WhatsApp Business API through another provider (e.g. Superchat, 360dialog, Trengo), you have two options:

Option 1: Direct migration (recommended – no waiting)

A direct number migration transfers your number from your current provider straight to meetergo — no cooldown and no downtime. Your number keeps its display name, quality rating, and approved templates.

How to do it:

1. Disable Two-Factor Authentication (2FA). The migration is always initiated from meetergo's side. All that's needed from your current provider is that the 2FA PIN on your number is switched off. There are two ways to do this:
   • Your own Meta account: If the number sits in your own Meta Business Portfolio, switch it off yourself: business.facebook.com → WhatsApp Manager → Phone numbers → your number → Two-step verification → turn off.
   • Provider-owned account: If that isn't possible, the WhatsApp Business Account belongs to your provider. Contact their support and ask them to disable two-step verification, or release the number for a provider switch. Superchat no longer offers a self-service transfer button in the channel menu.
2. In meetergo: Go to Integrations & Apps → WhatsApp Business → Connect
3. In the Meta popup: Enter your existing number — Meta will migrate it automatically

Option 2: Disconnect and reconnect (1–2 month waiting period)

If direct migration isn't possible (e.g. your current provider won't disable 2FA), there's a longer path:

1. Disconnect the number from your current provider
2. Delete the old WABA account in Meta Business Manager (Business settings → WhatsApp accounts)
3. Wait 1–2 months — Meta enforces a cooldown after previous API usage
4. Continue using the WhatsApp Business App actively during this time
5. Then start the Coexistence setup in meetergo (see above)

Coexistence limitations

• Message throughput drops from 80 to 20 messages per second (irrelevant for most users)
• View-once media and broadcast lists may work with limitations
• Template messages (e.g. reminders) can only be sent via the API, not via the app

Troubleshooting

Error: "This number is registered to an existing WhatsApp account"

This is the most common error when setting up Coexistence. It means the setup process did not enter Coexistence mode and is instead attempting a classic migration.

Possible causes and solutions:

1. The classic flow was started instead of coexistence Check this first — it is the most frequent cause and the fastest to fix. Inside the Meta popup, Add a new number always tries to register the number from scratch, which fails for any number that is already on your phone. The same happens if you clicked Set up a new number for the API in meetergo. → Solution: Close the popup and start again with the green Connect existing WhatsApp Business App button. In the Meta step that asks about your number, take the option that keeps the existing number (a display-name-only option) instead of adding a new one. You should end up at a QR code, not at SMS verification.

2. Number was previously connected to a WhatsApp Business API (WABA) If you previously connected this number to the WhatsApp Business API through meetergo, Superchat, or any other provider and then disconnected it, Meta enforces a cooldown period of 1–2 months. Coexistence onboarding is not available during this time. → Solution: Wait at least 1–2 months after disconnecting. Continue using the WhatsApp Business App actively during this period.

3. Old WABA account still exists in Meta Business Manager Even after disconnecting in meetergo, the WABA account may still exist in Meta Business Manager and block the number. → Solution: Go to business.facebook.com → Business settings → WhatsApp accounts and delete the old WABA account completely. Wait at least 5–10 minutes afterwards.

   Also check any chat or automation tool you have ever connected to Meta — ManyChat, Superchat, 360dialog, Trengo and similar. Several of them can add WhatsApp alongside Instagram or Facebook, so a number can be registered there even if you only ever meant to use Instagram. Disconnect WhatsApp in that tool first. If the meetergo attempt shows the message with a blue link such as "unlink from the existing account", follow it — it releases the number directly.

4. Minimum messaging volume not reached Meta requires the WhatsApp Business App to have reached a certain messaging volume before Coexistence becomes available. The exact threshold is not publicly disclosed. → Solution: Use the WhatsApp Business App actively for at least 2–4 weeks with real customer conversations before trying again.

5. WhatsApp Business App not up to date The app must be updated to version 2.24.17 or newer. → Solution: Update the app through the App Store / Google Play.

6. Number active in Business App for less than 7 days Meta requires at least 7 days of active use in the WhatsApp Business App. → Solution: Wait until the number has been active for at least 7 days.

"Account restricted" — no number can be added at all

If Meta tells you your WhatsApp Business account is restricted, or meetergo shows a Restricted badge on the number, the block sits on the Meta side and no connection route will work until it is lifted.

Meta applies this automatically after many connection attempts in a short time. It is a protective lock, not a judgement about your business — and it is the reason a long troubleshooting session can suddenly get worse instead of better.

What to do:

1. Stop trying to connect. Every further attempt can extend the restriction.
2. Go to business.facebook.com and open Account Quality. The reason for the restriction is shown there, usually with a button to request a review.
3. Request the review. Meta often lifts the restriction within a few days.
4. Wait it out — automatic locks frequently expire on their own if no new attempts are made.
5. Once the restriction is gone, start the connection again with Connect existing WhatsApp Business App.

Registering the number fails with "Too many attempts"

Meta rate-limits registration after repeated tries. Wait a few hours before the next attempt — retrying immediately extends the block and can escalate into the account restriction above.

My number is not accepted (no QR code)

• Make sure the WhatsApp Business App on your phone is updated to version 2.24.17 or newer
• Your number must have been active in the Business App for at least 7 days
• Check that you entered the number with the correct country code
• Make sure the number is registered in the WhatsApp Business App (not the regular WhatsApp app)

The QR code doesn't appear

• Make sure you entered the number correctly in the popup
• Try a different browser (Chrome is recommended)
• Temporarily disable popup blockers

SMS/call verification shown instead of QR code

If you're offered SMS or voice call verification instead of a QR code, the setup process has not detected Coexistence mode. This typically happens when one of the prerequisites above is not met (previous API usage, insufficient activity, outdated app version).

The connection drops

• Check your internet connection on both devices (computer and smartphone)
• Make sure you're signed in with the correct Facebook account in the Meta popup
• Try the process again

Existing WABA not shown in dropdown

You open the meetergo WhatsApp popup, select the correct Meta Business Portfolio, but the WhatsApp-Unternehmenskonto / WhatsApp Business Account dropdown only offers "Create new" — your existing WABA isn't listed.

This means the WABA is already linked to meetergo at the Meta level — usually because the coexistence setup was started from Meta Business Manager directly instead of from meetergo. Meta filters out WABAs that are already associated with the requesting app, which is why it doesn't appear.

Two ways to recover:

1. Detach meetergo at Meta, then redo the connection from meetergo. Open business.facebook.com → Business settings → Apps → meetergo → Remove. Then start the connection from meetergo again. Your WABA will reappear in the dropdown, and you'll re-establish coexistence during the new flow. ⚠️ This temporarily breaks the existing setup — don't do it during business hours if you rely on WhatsApp messaging.

2. Contact meetergo support for a manual link. If you'd prefer not to detach, send us your Business Portfolio ID and WABA ID (both visible at business.facebook.com → Business settings) along with a screenshot of the popup showing the empty dropdown. We'll wire the connection up for you without touching the existing setup at Meta.

I have a different issue

Send us a screenshot of the step where you're stuck — we're happy to help. Contact us at meetergo Support.

FAQ

Will I lose my WhatsApp chats?

No. Your existing chats remain in the WhatsApp Business App. Optionally, you can share up to 6 months of chat history with the API when connecting.

Can I still chat manually via the app?

Yes, absolutely. The app works exactly as before. Coexistence means both run in parallel.

Can I still make phone calls?

Yes. The phone function of your number is not affected by the API connection.

Does this work with a number I recently switched from personal to Business?

Yes, as long as the number has been active in the WhatsApp Business App for at least 7 days.

My number is currently with another provider (e.g. Superchat). Can I switch directly?

Yes! You can switch without any waiting period via a direct number migration. See the section Switching from another provider above.

I previously connected a number via meetergo/Superchat and then disconnected it. Can I use Coexistence now?

Not immediately. Meta enforces a cooldown period of 1–2 months after a previous API registration. During this time, you need to actively use the number in the WhatsApp Business App. After the cooldown, you can try the Coexistence setup again. This is why we always recommend trying a direct migration first, before disconnecting your number.

Why am I getting "This number is registered to an existing WhatsApp account"?

This message appears when the setup process does not enter Coexistence mode. The most common cause is that the number was previously connected to a WhatsApp Business API. See the Troubleshooting section above for the full solution.

Do I need a second number?

No. That's the benefit of Coexistence — you use one single number for everything.

What does Coexistence cost?

The Coexistence feature itself is free. For meetergo's WhatsApp integration, you need the Premium plan or higher. Meta charges separate conversation fees for API messages.