What is WhatsApp Coexistence?
“WhatsApp Coexistence” refers to the ability to use your WhatsApp Business App and a WhatsApp Business API-based platform at the same time with the same phone number without having to disconnect either one.
In practical terms:
- You can continue using the WhatsApp Business App on your phone to send and receive messages.
- Meanwhile, your team can use Trengo to automate, route, and manage messages via the WhatsApp Business API.
This means you don’t have to choose between keeping the app you’re familiar with and adding advanced automation and shared team workflows in a business inbox.
Key Benefits
1. Maintain Your Existing App Workflow
You keep using the WhatsApp Business App as normal. You won’t lose your chats, group messages, contact list, or app access. (Although some app features may be limited once connected to the API, see table below)
2. Add Team-Based Messaging with Trengo
Trengo lets multiple agents view, assign and reply to queries from one shared inbox. This is essential if you want teamwork, automated routing, or SLA tracking.
3. Enable Automation & Integrations
With Trengo + the API you can:
- Use automated replies and bots for FAQs.
- Manage workflows and customer data.
- Integrate WhatsApp with other channels and tools.
4. Smooth Transition to API
Coexistence lets you test or gradually adopt the API without shutting down the Business App. This reduces risk and disruption.
How Coexistence Works With Trengo
When you connect WhatsApp (via the API) to Trengo using your existing Business App number:
- Messages sent from the WhatsApp Business App may appear in Trengo as echoed messages visible to your team.
- Automated responses, chat routing, and SLA features work via the API inside Trengo.
- Your phone still receives direct messages in the WhatsApp Business App as usual.
This gives your team full visibility across channels, while individuals can continue using the app if needed.
Limitations & Things to Know
While coexistence offers flexibility, some WhatsApp Business App features may be disabled or behave differently when connected via API:
- Broadcast lists, group messages, and some message types may not appear in the API inbox.
- Features like edit/delete, view-once media, etc., may not be supported once coexistence is enabled.
- Advanced automation and team workflows are only available via the API (Trengo).
These limitations are due to how Meta implements coexistence and API-based connections, not because of Trengo specifically.

Requirements Before You Enable Coexistence
To use your WhatsApp Business App with Trengo at the same time:
- Your number must already be active on WhatsApp Business App. Brand new or seldom-used numbers may not work.
- Your number must be added to Meta Business Manager and meet verification requirements.
- Trengo must connect your number via WhatsApp Business API (Cloud API).
These steps help ensure stable coexistence and compliance with Meta’s platform rules.
When Should You Use Coexistence vs Full API?
Use Coexistence If:
- You want to keep using the WhatsApp Business App while testing or gradually adopting the API.
- Your team is moderate and doesn’t require advanced automation or reporting.
Switch Fully to API If:
- You need high-volume messaging, SLA reporting, advanced routing, and automation across a large team.
- You want all conversations fully managed through Trengo not split between app and API.
Coexistence is designed as a bridge from the simple app to professional API workflows.
Use our specially designed tool selector here to see which solution would be best.
FAQs
Do I lose my chats if I activate coexistence?
No, chat history stays accessible in the WhatsApp Business App.
Can multiple agents work on WhatsApp via the app alone?
Not natively, only the API (via a platform like Trengo) supports true multi-agent workflows.
Will using coexistence disable WhatsApp features?
Some app features (like broadcast lists or disappearing media) may not work when coexistence is enabled.
How do I recognize contacts from the Business App?
Contacts imported via the Business App are clearly shown in Trengo by “Sent via app” and have another green icon as avatar.
























