# WhatsApp coexistence

> Coexistence lets a business use the same WhatsApp number in both the WhatsApp Business app and the API, with chats kept in sync between them.

Canonical: https://heykiko.io/glossary/whatsapp-coexistence
Last updated: 2026-11-05

## What it means

Up to 180 days of one-to-one history can be brought across. On the shared number, groups, calls, broadcast lists and some app tools aren't supported, and throughput is fixed at 20 messages a second.

[Meta: onboarding WhatsApp Business app users](https://developers.facebook.com/docs/whatsapp/embedded-signup/custom-flows/onboarding-business-app-users)

## In HeyKiko

HeyKiko can connect a number on its own or an app number with coexistence.

## Related

- [WhatsApp Business API](https://heykiko.io/glossary/whatsapp-business-api)
- [WABA (WhatsApp Business Account)](https://heykiko.io/glossary/waba)
- [WhatsApp Business app vs API](https://heykiko.io/blog/whatsapp-business-app-vs-api#both)
- [Full glossary](https://heykiko.io/glossary)