Step-by-step guide: how to migrate from the WhatsApp Business app to the API

If you use the WhatsApp Business app, you've probably already noticed that it works well for a small business. But when you grow, it starts to feel limited: you can't automate responses, messages get lost if the app crashes, and handling messages from multiple devices is a mess. The WhatsApp API (Meta's WhatsApp Cloud API) is the professional solution you need. In this guide, we'll tell you what changes, how to prepare, and the steps to migrate without hassle.

Why migrate from the app to the API?

The WhatsApp Business app is free and easy to use, but it has a ceiling. The API opens up a world of possibilities that the app can't offer. Here are the key differences that matter for a business that wants to scale.

• Real automation: you can program automatic responses, response suggestions, and flows without touching anything manually.
• Reliability: the API uses Meta's cloud servers, so you don't depend on a single phone to avoid losing conversations.
• Multi-agent access: your team can respond from different devices and platforms at the same time.
• Scalability: handle more conversations without performance dropping.
• Templates and campaigns: send mass messages professionally and securely.

Requirements before migrating

Before starting the migration, make sure you have everything in order. It's not complicated, but it's important not to skip steps.

• Meta Business account: you need a business account on Meta. If you don't have one, create it at business.facebook.com.
• Verified phone number: the number you use on WhatsApp Business must be verified and active.
• Access to the WhatsApp Business app: you can continue using it during the migration, but afterward it will switch to read-only mode.
• Business documentation: Meta will ask you to verify that the number is really yours. Have business documents on hand.
• A platform or technology partner: you can use Wando or another solution that integrates the WhatsApp API, or develop your own integration.
• Communication plan: let your team know that there will be changes in how messages are handled.

Step 1: Prepare on Meta Business

1. 1Go to business.facebook.com with your Meta account.
2. 2Look for the WhatsApp Business configuration section (exact steps may vary depending on Meta's interface).
3. 3Add the phone number you use on WhatsApp Business.
4. 4Follow the verification instructions. Meta will ask you for a code via SMS or call.
5. 5Once verified, your number will be ready to use the API.

Step 2: Choose a platform to manage the API

The WhatsApp API is just that: an API. You need a platform or application that uses it to make it useful. Here are your options:

• Ready-to-use solutions: like Wando, which already integrates the API, suggests automatic responses, and learns from your real responses. Ideal if you want to start quickly without programming.
• Custom development: if you have a technical team, you can build your own solution using Meta's documentation.

The advantage of using a platform like Wando is that it comes pre-configured, the team suggests responses, and you just approve with a click. You don't have to program anything. Plus, it learns from your real responses and improves on its own over time.

Step 3: Connect your number to the platform

1. 1Create an account on the platform you chose (for example, Wando).
2. 2Go to the WhatsApp integration or configuration section.
3. 3Click on 'Connect WhatsApp' or similar.
4. 4You will be redirected to Meta to authorize the connection.
5. 5Select your phone number and authorize the permissions the platform needs (send and receive messages, access contacts, etc.).
6. 6Confirm the connection. The platform should show that it is connected.

Step 4: Migrate your contacts and messages

Here comes the part that worries businesses the most: what happens to my contacts and conversations? The good news is that they are not lost, but you need to do the transfer properly.

• Contacts: export your contact list from WhatsApp Business (usually as CSV or Excel). Then import them into the new platform.
• Message history: contacts will still see their previous conversations in WhatsApp. The important thing is that from now on, all new messages are recorded in the platform.
• Labels and groups: if you had contacts organized by labels, recreate them in the new platform.
• Templates: if you used automatic replies in the app, recreate them in the API.

Step 5: Test before deactivating the app

1. 1Send a test message to a contact from the new platform.
2. 2Verify that the message arrives correctly.
3. 3Test receiving a message from the contact and that it appears in the platform.
4. 4Test automatic replies if you set them up.
5. 5Try sending a message template.
6. 6Verify that contacts and history are correct.
7. 7Ask your team to also test from their devices.

Step 6: Deactivate the app (when you are ready)

Once everything works well, you can deactivate the WhatsApp Business app. This avoids confusion and ensures that all messages go through the API.

1. 1Let your team know they will switch to the new platform.
2. 2Do a final check that everything is working.
3. 3Uninstall the WhatsApp Business app from your phone or simply stop using it.
4. 4All new messages will go through the platform. Monitor that everything continues to work well during the first few days.

Common migration errors

• Not verifying the number in advance: Meta can take time. Do it as soon as possible.
• Deactivating the app before the API is ready: always test first.
• Forgetting to import contacts: your team needs to know who they are writing to.
• Not setting up automatic replies: the API is powerful, use it. If you used replies in the app, recreate them.
• Switching platforms without training the team: make sure everyone knows how to use the new tool.
• Ignoring Meta permissions: read carefully what permissions you request and why you need them.

After migrating: what's next

The migration is not the end, it's the beginning. Now that you have the API, make the most of it.

• Set up message templates for your most common cases.
• Use smart automatic replies (if the platform offers them, even better if they learn from your real responses).
• Organize contacts by tags or segments.
• Look at message reports to understand what works.
• Train your team on the new platform.

If you use a platform like Wando, you have an extra: AI suggests responses based on what your team actually replies, and it improves over time. It's not a rigid chatbot; it's an assistant that learns from you.