> For the complete documentation index, see [llms.txt](https://help.zaapi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.zaapi.com/integrations/whatsapp-business/limitations.md).

# Limitations

### Messaging Window

When a customer sends you a message on WhatsApp, you have a standard messaging window to respond to that customer of **24 hours**. During this 24 hour period, you can send all types of content (i.e responses to their questions or promotional content). Every time a customer sends you a new message, this messaging window resets.

**Outside of the messaging window** (i.e. when more than 24 hours have passed since the customer’s last message), you can still send pre-approved template messages from Zaapi. You can create your own templates or use the default re-engagement template provided by Zaapi. Note that message templates must be approved by Meta before they can be used — this process may take up to 1 day. See Meta’s [Message Template Guidelines](https://developers.facebook.com/docs/whatsapp/message-templates/guidelines/) for more information.

<figure><img src="/files/iXqq66UTeEgUC8d3IhwJ" alt="" width="375"><figcaption></figcaption></figure>

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### File Upload Limitations

* Image (5 MB)
  * .jpg, .jpeg, .png (not .heic)
* Audio (16 MB)
* Video (16 MB)

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### Limitations when connecting with Coexistence

[Connecting with Coexistence](/integrations/whatsapp-business/how-to-connect.md#connecting-whatsapp-business-app-aka-coexistence) allows you to maintain use of your WhatsApp Business app. Below is a table of features that are supported and unsupported

<table><thead><tr><th width="294.1328125">Feature</th><th width="203.65234375">WhatsApp Business App</th><th>Zaapi</th></tr></thead><tbody><tr><td>Group Chats</td><td>✅</td><td>❌</td></tr><tr><td>Disappearing messages/view once messages</td><td>❌</td><td>❌</td></tr><tr><td>Message editing/revoking</td><td>❌</td><td>❌</td></tr><tr><td>Live location messages</td><td>❌</td><td>❌</td></tr><tr><td>Message reactions</td><td>✅</td><td>❌</td></tr><tr><td>Voice and video calls</td><td>✅</td><td>❌</td></tr><tr><td>Messaging outside of 24-hour messaging window</td><td>✅</td><td>⚠️ Only with template messages</td></tr></tbody></table>

### Limitations when connecting an API phone number

[Connecting an API phone number](/integrations/whatsapp-business/how-to-connect.md#connect-a-new-or-existing-whatsapp-cloud-api-phone-number)  means that you will only be able to access your WhatsApp Business chats through Zaapi. Some messaging features are not supported in Zaapi:

* Group chats
* Disappearing messages/view once messages
* Message editing/revoking
* Live location messages
* Message reactions
* Voice and video calls
* You can only message outside of the 24-hour messaging window using pre-approved templates

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### Limitations sending messages by country

Only Brazilian business accounts can send messages to Brazilian (+55) numbers\
Only Indonesian business accounts can send messages to Indonesian (+62) numbers