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Official WhatsApp Cloud API Provider

WhatsApp Coexistence

With WhatsApp Coexistence, you can keep using the WhatsApp Business app and Saysimple through the WhatsApp Business API with the same phone number. This allows your team to manage personal, day-to-day communication in the app while benefiting from Saysimple’s shared inbox, automation and integrations.
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Coexistence is designed for businesses already using the WhatsApp Business app that want to connect their existing number to the API without giving up app access.

Trusted by 500+ customers

The main benefit

The main benefit of WhatsApp Coexistence is that businesses can scale customer communication with Saysimple without losing the flexibility of the WhatsApp Business app or having to change their existing phone number.

It bridges the gap between personal, one-to-one communication and structured team collaboration. Employees can continue using the app for day-to-day conversations, while the wider team can work from Saysimple’s shared inbox, automate workflows and manage customer interactions centrally.

Important things to know

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WhatsApp business app

Keep the App active

Open the WhatsApp Business app at least once every 13 days. Do not uninstall it while using Coexistence.

synchronization

Chats are automatically synced

Coexistence supports syncing messages between the App and API. What appears in Saysimple depends on the active integration and supported sync functionality.

template messaging costs

Costs

Messages sent directly from the Business app remain free of WhatsApp messaging charges. API messages may incur Meta/WhatsApp charges.

4 reasons why companies choose Saysimple

Experience more efficient customer communication, smart integrations, and data-driven automation that truly improve your results.

Centralized platform

Manage all your customer conversations across multiple channels, including WhatsApp, in one place for clarity and efficiency.

Reliable & Scalable

Designed to grow securely with your organization and easily expand step by step as your needs increase.

Open API for Integrations

Connect your existing software to Saysimple, synchronize data, and automate personalized outbound messages.

WhatsApp-first development

The platform is built from the ground up for WhatsApp, ensuring optimal performance for features, automation, and messaging.

Discover our platforms modules

A customer engagement platform tailored to your needs

Everything for flawless customer engagement.

Optimize every customer contact with our powerful, integrated tools and workflows.

Inbox

All messages in one place

Messaging

WhatsApp, Facebook & Instagram

Contacts

Manage Customer Profiles

Team management

Manage User Roles and Teams

AI Agents

Handling Frequently Asked Questions

Flow Builder

Automate Workflows

Analytics

Performance Insights

Opening hours

Welcome- and Out of Office messages

Call deflection

From Calls to Chat

Broadcasting

Bulk messages

Contact lists

Creating & Segmenting Lists

Template Manager

Manage WhatsApp templates

Quick Replies

Send quick replies

Custom Fields

Create detailed customer profiles

Integrations

Connect your favorite tools

Developers API

API & Webhooks Available

Proven in B2B Commerce.

Faster response time

"To keep customer contact scalable, WhatsApp via Saysimple was the logical next step."

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Job applicants via WhatsApp within 6 months

Faster response time

Ready to use WhatsApp Business professionally?

Bring structure to your customer communication and discover how efficiently your team can work with Saysimple. Schedule a free demo tailored to your organization.

Book a demo Message us on WhatsApp

Trusted by 500+ customers