> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/developing/form/actions/actions-description/group-communications/push-notification-delete-lost-message.md).

# Push Notification Delete Lost Message

Deletes push notification messages currently stored on the device.

Action available for the following operating systems:

![](/files/kfMeq0OanEe5OOx5RmUn)

### Parameters

* **Delete** - The message or messages to delete. It can be one off:
  * 1 - **Next Message** - Deletes the most recent message.
  * 2 - **Specify Id** - Deletes the message with the specified ID.
  * 3 - **All Messages** - Deletes all the messages.
* **Message ID** - The ID of the message to be deleted when the Delete parameter is set to 1 - Next Message.

{% hint style="info" %}
If a message is received and your application is not running, the O.S. will make the appropriate display of the message, and if you enabled the **"Save messages when application is not active"** option in your **Project Properties**, it will be saved locally on the device. You can use **"Push Notification ... Lost ..."** actions to retrieve the messages that where received while your application was not active.
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://doc.sysdevmobile.com/kalipso5/developing/form/actions/actions-description/group-communications/push-notification-delete-lost-message.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
