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

# Passing Data

> Use outputs from one node as inputs to the next

# Passing Data Between Nodes

Each node returns output that you can map into later nodes.

## How data mapping works

* Run or test your workflow to generate sample output
* Select an input field in the next node
* Choose data from previous node outputs
* Save and re-test to confirm the value path

You can map nested fields, arrays, and objects.

## Example

Use text returned from an **AI Action** node in a **Slack message** node.

<img src="https://mintcdn.com/impresiv/MabA9lvHB1wklzGc/gifs/passing-data.gif?s=acf7fe99489fbfe8846d67fde5c554e6" alt="Passing data between nodes" width="1860" height="912" data-path="gifs/passing-data.gif" />

## Best practices

* Use clear node names so outputs are easy to find
* Validate mappings in test logs before publishing
* Add fallback values for optional fields