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

# Write Your Authorization Data

> Write Your Authorization Data

This section helps you integrate Auth0 FGA with your system. To do this, you will learn how to programmatically write authorization related data to Auth0 FGA.

**When to use**

This section is useful if you have defined an authorization model and want to understand how to write authorization data to Auth0 FGA to represent the state of your system.

## Content

**Manage User Access**

Write relationship tuples to manage a user's access to an object.

**Manage Group Access**

Write relationship tuples to manage access to an object for all members of a group.

**Manage Group Membership**

Write relationship tuples to manage the users that are members of a group.

**Manage Relationships Between Object**

Write relationship tuples to manage how two objects are related. E.g. parent folder and child document.

**Transactional Writes**

Write multiple relationship tuples in a single request, so all writes either succeed or fail.

**Comparison Between Check, Read And Expand**

Comparing when to use check vs. read vs. expand.

**Consistency Modes**

Auth0 FGA Consistency Modes.