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WhatsApp Business API vs Coexistence: What’s the Difference?

Compare WhatsApp Business API and Coexistence to understand how each works, their key differences, and which setup best fits your business needs.

5 min readBy the Flovoo team

Overview

Businesses using WhatsApp today often choose between two main approaches:
WhatsApp Business API or WhatsApp Coexistence.

The key difference lies in how the phone number is used, and whether the WhatsApp Business App can still be used after setup.

Diagram titled "Choose the WhatsApp setup that fits your business needs": a balance weighing WhatsApp Business API, with a dedicated phone number and the app not usable, against WhatsApp Coexistence, with a shared phone number and the app still usable.

What is WhatsApp Business API?

WhatsApp Business API is designed for businesses that want to scale communication and automate workflows.

In a traditional API-only setup, the phone number is used entirely through a system (such as Flovoo ) and cannot be used on the WhatsApp Business App.

Key characteristics:

  • No mobile app usage
  • Multi-agent support
  • Automation (chatbots, workflows)
  • Template messaging
  • Integration with business systems
Circular diagram titled "WhatsApp Business API Characteristics" with five numbered points: core system for business communication, no mobile app usage, multi-agent support, automation, and template messaging.

What is WhatsApp Coexistence?

WhatsApp Coexistence allows businesses to:

Use the WhatsApp Business App and the API on the same number at the same time

What this means:

  • You keep using the mobile app
  • You also gain API capabilities
  • No need to delete your account or change your number
Diagram titled "WhatsApp Coexistence Benefits" with four coloured panels: mobile app usage, API capabilities, no account changes, and combined communication.

Feature Comparison

FeatureCoexistence (App + API)WhatsApp Business API Only
Number usageYou use the same number on your phone and in the system (Flovoo)Your number works only inside the system (not on the app)
Mobile app usageYou can still open and use WhatsApp Business on your phoneYou cannot use the WhatsApp app with this number
Manual repliesYou can reply manually from your phone like normalYou can only reply from the system (no phone replies)
AutomationThe system can send automated messages, while you still reply manually from the appAll messages (manual + automated) are handled through the system
Voice & video callsYou can call customers from the app only (not from Flovoo)Calls are not available at all
Group chatsYou can use group chats on the appGroup chats are not available
Broadcast listsYou can see old broadcast lists, but cannot create new onesBroadcasts are sent as campaigns/templates from the system
Status updatesYou can post and view status from the appStatus is not available
Message editing & deletingYou cannot edit or delete messages after sendingYou cannot edit or delete messages
Data syncYour contacts and recent chats (up to 6 months) can sync between app and systemData exists only in the system (no sync from the app)
Linked devicesYou can use linked devices (like WhatsApp Web), but some may not fully syncYou don’t use linked devices — everything is inside the system

What Happens to Your Data?

API-only setup

  • The WhatsApp Business App can no longer be used with the same number
  • Existing chat history is not automatically transferred to the system
  • If you delete your account during setup, chats may be removed from the app

Coexistence

  • The WhatsApp Business App remains active
  • Contacts and recent conversations (up to 6 months) can sync to the system
  • Your existing chats stay available on the app
Comparison titled "API-only setup or Coexistence for your WhatsApp Business?" in two columns: API-only does not transfer existing chat history and stops the WhatsApp Business app working on the same number, while Coexistence syncs contacts and up to six months of conversations and keeps the app active.

When to Use Each

Use WhatsApp Business API if:

  • You want full automation and system control
  • Your team manages all conversations from a platform (e.g. Flovoo )
  • You do not need to use the mobile app

Use Coexistence if:

  • You already use the WhatsApp Business App
  • You want to move to the API gradually
  • You need both:

    • manual communication from the app
    • automation from the system
Comparison table of WhatsApp Business API against Coexistence across five rows: automation, conversation management, mobile app usage, transition, and communication needs.

Summary

  • WhatsApp Business API is ideal for fully managing conversations through Flovoo and scaling your operations
  • Coexistence provides flexibility by allowing you to use both the app and Flovoo together
  • Coexistence is the best option if you want to adopt the API gradually without changing your current workflow