> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Player Custom Properties

> Overview of PlayFab Player Custom Properties: key-value pairs storing string, numeric, boolean, or datetime data on title_player_account entities, with limits.

<Note>
  The Player Custom Properties feature is in public preview. While the core functionality is in place, we’re refining the experience based on feedback and usage patterns.
</Note>

Custom Properties are key-value data pairs that store additional information about players. These data pairs type can be string, numeric, boolean, or datetime.

Custom Properties and their values are stored with other player information, such as their display name, statistics, and tags.

<Note>
  Custom properties are only supported on title\_player\_account entities.
</Note>

## Configuring Custom Properties

Custom Properties can be set up in different ways:

* Through the **UpdatePlayerCustomProperties** action, which updates the player’s properties.
* You can also remove custom properties using the **DeletePlayerCustomProperties** action.
* And you can also modify a single player’s properties via the Game Manager UI.

## Limits

Some limitations on the Custom Properties are:

* Property names must be of type string and have a maximum length of 36 characters
* Property names are case sensitive, so for example prop and PROP are different names
* String values have a maximum length of 36 characters
* The supported numeric values are double floating point (IEEE 754 standard)
* Datetime string values must use the ISO 8601 format and all comparisons are done with respect to UTC
* There can be only 5 unique custom properties per player (It isn't required that each player has the exact same 5 property names)

## Benefits

Custom properties are powerful, they enable you to do codeless development that correlates multiple existing PlayStream events, which enable you to track state across events related to the same player.