Most businesses hit the same wall when growing on WhatsApp. You start with the WhatsApp Business app. It works fine. You reply to customers, maybe send a few updates, and everything feels manageable.
But as messages increase, things get messy. You need automation, better organization, maybe even a team handling chats. That’s when you hear about the WhatsApp Business API.
And then comes the hesitation. “Do I have to give up my current WhatsApp setup?”
“Will I lose my number or chat history?” “Is this going to disrupt how I work?”
This is exactly where WhatsApp coexistence comes in. It lets you keep using your WhatsApp Business app while also unlocking the power of the API. No hard switch. No starting over. Just a smoother way to scale what you’re already doing.
What Is WhatsApp Coexistence?
WhatsApp coexistence is a feature from Meta that lets you use the WhatsApp Business app and the WhatsApp Cloud API together on the same phone number.
Before this, businesses had to choose one or the other. If you moved to the API, your number was disconnected from the app. That meant giving up the familiar interface and changing how your team handled conversations.
Coexistence changes that.
You can keep using your WhatsApp Business app for day-to-day chats while also connecting that same number to the API for automation, campaigns, and team collaboration. Your contacts stay intact, your chat history remains, and your workflow doesn’t get disrupted.
It’s a much smoother way to grow. You don’t replace what’s already working. You build on top of it.
Why WhatsApp Coexistence Matters for Scaling Business
When you’re growing on WhatsApp, the challenge isn’t just handling more messages. It’s doing it without breaking what already works. And that’s exactly what coexistence helps you solve.
In case you’re not sure how this applies to you, let’s break down why it matters.
No Lost Contacts or Chat History
One of the biggest concerns when moving to the API is losing data. With coexistence, that doesn’t happen. Your contacts, past conversations, and ongoing chats remain intact. Your team doesn’t need to start over, and customers don’t feel any disruption.
Use The Same Number Across Both Setups
You don’t need to switch numbers or create a new identity. Your existing WhatsApp Business number stays the same. You simply extend its capabilities. The app handles manual chats, while the API supports automation and campaigns, all on that same number.
Better Control Over Costs
Not every conversation needs to go through the API. With coexistence, you can still handle one-to-one chats on the app for free, while using the API for structured messaging like campaigns or notifications. This gives you more flexibility in how you manage costs as you grow.
Automatic Sync Between App and API
No more copying contacts or trying to track conversations manually. Once coexistence is active, your leads and messages sync across both the app and the API setup. Whether a conversation starts on your phone or through your system, everything stays connected.
Scale Your Messaging Without Limits
The WhatsApp Business app has its limits, especially when it comes to reaching larger audiences. But with coexistence, you can tap into the API to send bulk messages, run campaigns, and integrate with tools like CRMs. This makes it much easier to manage outreach as your customer base grows.
Combine Automation with Human Conversations
Automation is powerful, but it can’t replace real conversations completely. But now, you can use both. You can automate responses, set up chat flows, and still jump in manually when needed. Platforms like DMly make this balance easy to manage.
Faster Response Times as You Grow
As message volume increases, responding manually becomes harder. But that will no longer be a headache because with the API handling volume and automation, and your app handling direct conversations, your team can respond faster without getting overwhelmed. It keeps your customer experience smooth, even as demand increases.
What Changes When You Activate Coexistence?
Coexistence makes things easier, but it doesn’t mean everything works exactly the same as before.
Once your number is connected to both the WhatsApp Business app and the API, a few features behave differently. Nothing breaks, but some functions are adjusted to make both systems work together.
Most of these changes are small, but it’s good to know what to expect so you’re not caught off guard.
Here’s a quick breakdown:
Function | What Changes With Coexistence |
|---|---|
| Broadcast lists, groups, communities | Still work in the app, but won’t appear in your API inbox |
| View-once / temporary messages | Disabled in one-to-one chats |
| Edit or delete messages | Not available once a message is sent |
| Live location sharing | Not supported in individual chats |
| Calls from the app | Still works, but only from the main phone |
| Messages sent from the app | Show as “echo” in the API (they won’t trigger automations) |
| API campaign speed | Limited (Meta controls sending speed, e.g. messages per second) |
| Verification badge (Meta Verified) | Remains on the app, may not instantly reflect on API side |
| App inactivity (14+ days) | API connection may pause until the app is reopened |
The important thing to understand is this. Coexistence is built to balance both worlds. You still get the flexibility of the app, but now with the power of the API layered on top. A few features change, but in return, you get a setup that can actually handle growth without forcing you to switch completely.
Requirements for Activating Coexistence
Before you activate coexistence, there are a few things you need to have in place. These aren’t complicated, but they do matter. Missing one can slow things down or stop the setup completely.
1. Your number must be active on WhatsApp Business app
Your number can’t be brand new or inactive. Meta expects to see real activity on the account. That means messages sent and received over time. If your number has little or no usage, the request may be rejected.
2. Your business must be verified on Meta
You need a properly set up Meta Business account. Your number should be verified inside Meta Business Manager, and the setup must go through an official provider using Meta’s embedded signup flow. This is how the API connection is created.
3. You must use the cloud API
Coexistence only works with the Cloud API. If your setup is based on the older on-premise API, this feature won’t be available. Most modern platforms, including DMly, already use the Cloud API, so this usually isn’t an issue.
4. You need to open the app regularly
You need to open your WhatsApp Business app at least once every 14 days. If you don’t, the connection between the app and the API can pause, and syncing will stop until the app is reopened.
5. Availability depends on your region
Coexistence isn’t available everywhere yet. Meta is rolling it out gradually, and some countries are still not supported. At the moment, Nigeria and South Africa are not supported, so it’s important to confirm availability before starting.
6. Temporary changes to verification badge
If your account has the Meta Verified badge, you might notice a small change during setup. The badge can temporarily disappear while coexistence is being activated. It usually returns after a short period, so there’s no need to worry if this happens.
How to Activate and Use WhatsApp Coexistence
Setting up coexistence is easier than most people expect. You’re not rebuilding anything from scratch. You’re simply connecting your existing WhatsApp Business app to the API so both can work together.
Here’s how it typically works.
Step 1: Choose a provider that supports Coexistence
The first step is picking a WhatsApp API provider that supports coexistence. This matters because not all platforms offer it. Providers like DMly are built to handle this setup smoothly, making sure your app and API stay in sync without issues.
Step 2: Start the setup inside Meta Business
Log in to your Meta Business account using the same profile linked to your WhatsApp Business app. During the setup process, you’ll be asked how you want to connect. Choose the option that allows you to connect your existing WhatsApp Business app. This is what enables coexistence.
Step 3: Enter your existing WhatsApp number
Next, you’ll enter the phone number currently used on your WhatsApp Business app. This is important. You’re not creating a new number. You’re connecting the same one, so both systems can run together.
Step 4: Scan the QR code from your app
Once you proceed, Meta will generate a QR code. Open your WhatsApp Business app on your phone and scan this code. During this step, you’ll be asked to allow access to your contacts and recent chat history. This is what allows everything to sync properly.
Step 5: Sync your data
After scanning, your contacts and recent conversations (usually up to the last few months) will start syncing with your API platform. This means your team can access conversations from both the app and the API dashboard without losing context.
Step 6: Start using both together
Once the setup is complete, you’re ready to go.
You can continue chatting from your WhatsApp Business app as usual, while also using the API for automation, campaigns, and team collaboration. New messages will sync across both, so you’re always working with the same information.
Which Business Is Coexistence Best for?
Coexistence works best for businesses that have already started using WhatsApp seriously and are beginning to feel the limits of the Business app. If you’re getting regular enquiries, managing a growing number of chats, or thinking about running campaigns, this setup helps you scale without disrupting your current workflow.
It’s especially useful for e-Commerce brands, service-based businesses, and teams that want both automation and real conversations. You can keep using the app for direct chats while using the API for campaigns, follow-ups, and team collaboration.
It’s a good fit for businesses that are growing and don’t want to choose between simplicity and scale.
Multi-Device and Multi-Agent: What Exactly Are They?
This is where things often get mixed up.
Multi-device and multi-agent sound similar, but they solve very different problems. When you understand the difference between them, it will be easier to choose the right setup as your team grows.
Multi-Device: Simple Access Across Devices
Multi-device is the basic setup most people already use. It lets you connect your WhatsApp Business account to multiple devices, usually up to a few computers or tablets alongside your main phone. This works well if you have a small team and just need access from different places.
But everything is shared. Everyone sees the same chats, and there’s no structure around who replies to what. As message volume increases, it can quickly become messy, with overlapping replies or missed conversations.
Meta’s Multi-Agent (Limited Availability)
Meta has started rolling out a more structured version called multi-agent. This setup allows multiple users to handle conversations more independently. You can assign chats and see who responded to which customer, which adds a layer of organization.
The catch is that it’s still limited. It’s tied to Meta’s verified business plans and isn’t fully available in all regions yet. For many businesses, it’s not something you can rely on just yet.
Real Multi-Agent Setup with API
This is where coexistence really starts to shine. When you connect your number to the API through a platform like DMly, you move beyond shared access into a proper team system.
Instead of everyone working in the same chat view, you get a shared inbox where conversations can be assigned to specific team members. You can track response times, manage workloads, and keep everything organized as your volume grows.
You can also automate parts of the conversation, set up workflows, and run campaigns, all without relying on your phone.
So while multi-device helps you access WhatsApp in more places, a true multi-agent setup helps you manage it properly as a team.
Charges with WhatsApp Coexistence – How It Works
Using coexistence doesn’t suddenly make everything paid. It just changes how different types of messages are handled.
If you continue using your WhatsApp Business app the way you always have, those messages remain free. One-to-one chats, quick replies, and regular conversations on the app don’t cost anything.
The charges only come in when you start using the API side.
Messages sent through the WhatsApp Business API follow Meta’s pricing model. Since July 2025, this is based on a per-message structure rather than per conversation. So every template message you send for campaigns, updates, or notifications is billed individually, depending on factors like message type and user location.
There’s also the platform side to consider. When you use a provider like DMly, you may have a subscription or usage-based cost for accessing tools like automation, campaigns, and analytics.
Best Practices for Using WhatsApp Coexistence
#1: Use the app and API for different roles
Think of them as two parts of the same system. Use the WhatsApp Business app for direct, one-to-one conversations. Use the API for campaigns, automation, and handling volume. Keeping this separation makes everything more organized and easier to manage.
#2: Keep your app active regularly
This is easy to overlook but important. Make sure your WhatsApp Business app is opened at least once every couple of weeks. If it stays inactive for too long, the connection with the API can pause, and syncing may stop until you reopen it.
#3: Train your team on how it works
Your team should understand the difference between messages coming from the app and those handled through the API. This prevents confusion, especially when messages appear in different places or when automation is involved. A little clarity upfront can save a lot of back-and-forth later.
#4: Use automation carefully
Automation is powerful, but it works best when it feels natural. Set up flows for common queries, follow-ups, and campaigns, but leave room for human responses when needed. The goal is to support conversations, not replace them completely.
The DMly Edge for Using WhatsApp Coexistence
Coexistence on its own is powerful. But how you manage it makes all the difference. Instead of just giving you access to the API, DMly turns coexistence into something you can actually use day to day without friction. Your WhatsApp Business app stays active, while DMly handles everything on the API side in a clean, organized way.
One of the biggest advantages is the shared inbox. As messages start coming in, your team isn’t stuck looking at the same chat screen. Conversations can be assigned, tracked, and managed properly, so nothing gets missed and everyone knows what they’re responsible for.
Automation is another area where DMly makes a difference. You can set up chat flows, auto-replies, and follow-ups that run in the background, while still jumping into the app when a real conversation is needed. It gives you that balance between speed and human interaction.
And importantly, DMly makes the whole coexistence setup simple. No complicated technical steps. No disruption to your current number. You keep what’s already working and layer in more capability as your business grows.
So instead of just “having” coexistence, you’re actually using it in a way that supports growth, without adding complexity.
FAQs
Can I use the WhatsApp Business App and the API with the same number?
Yes, that’s exactly what coexistence allows. You can use your existing WhatsApp Business app and connect the same number to the Cloud API. Both will work together, so you don’t have to switch numbers or start over.
Is messaging on WhatsApp Coexistence free?
It’s partly free. Messages sent through the WhatsApp Business app remain free, just like before. Messages sent through the API are charged based on Meta’s pricing model. So your cost depends on how much you use the API side for campaigns and automation.
What is the top most benefit of using WhatsApp Coexistence?
The biggest benefit is that you can scale without disruption. You keep your existing setup, number, and conversations, while adding automation, campaigns, and team collaboration through the API.
Is WhatsApp Coexistence officially supported by WhatsApp?
Yes, it’s an official feature from Meta. It’s designed to help businesses transition more smoothly from the WhatsApp Business app to the Cloud API without forcing a complete switch.
Can small businesses also benefit from WhatsApp Coexistence?
Yes, especially if they’re starting to grow. If you’re moving beyond handling a few chats and need better organization, automation, or team access, coexistence helps you scale without making things complicated.
Do I need a BSP (Business Solution Provider) to enable WhatsApp API in Coexistence?
Yes, you do. Coexistence is enabled through an official provider. Platforms like DMly handle the setup and give you the tools to use both the app and API together.
How do I decide whether my business needs WhatsApp Coexistence or not?
It usually comes down to volume and complexity. If you’re managing more conversations, thinking about campaigns, or working with a team, coexistence makes things easier. If your usage is still very basic, you might not need it yet.
Will my chat history sync between the WhatsApp Business App and WhatsApp Cloud API?
Yes. When you activate coexistence, your contacts and recent conversations are synced. This means you can continue chats from either the app or your API platform without losing context.
Can I activate coexistence with a new number?
Not ideally. Coexistence works best with an existing number that already has activity on the WhatsApp Business app. If the number is brand new, it’s better to build some usage first before trying to activate it.
