> ## Documentation Index
> Fetch the complete documentation index at: https://meta-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Main Body Parameters

> Learn about the main body parameters available in the Conversions API.

| Parameter                    | Description                                                                                                                                                                                                                                                                                              |
| ---------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [`data`](#)array\<object>    | **Required.** An array of server event objects. See [Server Event Parameters](/docs/marketing-api/server-side-api/parameters/server-event) for more information.                                                                                                                                         |
| [`test_event_code`](#)string | **Optional.** Code used to verify that your server events are received correctly by Facebook. Use this code to test your server events in the Test Events feature in Events Manager. See [Test Events Tool](/docs/marketing-api/facebook-pixel/server-side-api/using-the-api#testEvents) for an example. |

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