> For the complete documentation index, see [llms.txt](https://support.whapi.cloud/help-desk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.whapi.cloud/help-desk/receiving/http-api/restoring-missing-messages-using-resync.md).

# Restoring Missing Messages Using Resync

In situations where incoming or outgoing WhatsApp messages are temporarily inaccessible (returning a 404 error via HTTP GET requests), Whapi.Cloud provides a resync functionality allowing you to recover these messages into your cache.

#### When to Use the Resync Function

* Messages sent or received during internal synchronization issues.
* HTTP GET requests for messages returning a 404 error.
* Quoting a message that returns a 404 error.

#### How to Resync Messages

Send a GET request with the `resync=true` parameter to the Whapi endpoint:\
`GET https://gate.whapi.cloud/messages/{MessageID}?resync=true`

{% hint style="warning" %}

* Make sure that the linked phone is connected to the network during the request (it is sufficient for the phone to be simply turned on). 
* Processing the request takes 15 seconds and may return a 404 response, but this does not indicate an error.
  {% endhint %}

The HTTP GET request for the message will cease returning a 404 within a few minutes, allowing you to reference and use the message ID normally.

#### Important Considerations

**After resyncing, a webhook notification about the message will be triggered!** If you have automation scripts or bots configured to listen for new message webhooks, temporarily disable them to avoid unintended processing of these restored messages.

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