---
title: Push source item data
slug: '73'
canonical_url: https://docs.coveo.com/en/73/
collection: index-content
source_format: adoc
---
# Push source item data
Depending on your needs, you can use one of the following properties to specify the data you want to push along with an individual [item](https://docs.coveo.com/en/210/):

[%header]
|===
|Property name ^|Maximum data size ^|Allows binary data ^|Allows compressed data |Note |Dedicated article

|`data`
|5 MB
^|[x]
^|[x]
|Limited, but simple and useful for tests.
|[Use the data property](https://docs.coveo.com/en/31/)

|`compressedBinaryData`
|5 MB
^|[check]
^|[check]
|Value must be the Base64 encoded data.
|[Use the compressedBinaryData property](https://docs.coveo.com/en/164/)

|`compressedBinaryDataFileId`
|256 MB
^|[check]
^|[check]
|Value must be the ID of the file container the data was previously uploaded to.
|[Use the compressedBinaryDataFileId property](https://docs.coveo.com/en/69/)
|===

> **Tip**
>
> Whenever you perform a request to add or update an item in a Push [source](https://docs.coveo.com/en/246/), you should specify an adequate value for the `fileExtension` property (for example, `.txt`, `.html`, `.docx`, and `.pdf`).

## What's next?

The following articles provide details on using each item data property:

- [The data property](https://docs.coveo.com/en/31/)
- [The compressedBinaryData property](https://docs.coveo.com/en/164/)
- [The compressedBinaryDataFileId property](https://docs.coveo.com/en/69/)
- [Embedded documents](https://docs.coveo.com/en/3166/)