# Flatten list transform action
## Use case
You are working with a list of users, however the users are nested in a list.
You would like to flatten the list of lists so it ends up as a list of objects.
## Overview
Flatten a nested List.
## Parameters
Parameter
Description
Required
Array variable to flatten
The array you would like to flatten
true
## Usage
Example: Flattening nested lists
Input:
**Array variable to flatten:**
```json
[
[
{
"user": "Dan"
}
]
],
[
[
{
"user": "Bob"
}
]
],
[
[
{
"user": "Sheryl"
}
]
],
[
[
{
"user": "Sarah"
}
]
],
[
[
{
"user": "Sean"
}
]
]
```
## Results output
Result of Example:
```json
[
{
"user": "Dan"
},
{
"user": "Bob"
},
{
"user": "Sheryl"
},
{
"user": "Sarah"
},
{
"user": "Sean"
}
][
{
"user": "Dan"
},
{
"user": "Bob"
},
{
"user": "Sheryl"
},
{
"user": "Sarah"
},
{
"user": "Sean"
}
]
```
---
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