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

# Human Input Node

> Pause workflow execution to collect input from human operators

## Overview

The Human Input Node pauses workflow execution and waits for human intervention. This node enables you to:

* Request approval or review from human operators
* Collect structured data via custom form fields
* Insert manual decision points in automated workflows
* Gather contextual information that automation cannot determine
* Create human-in-the-loop (HITL) workflows

## Configuration Parameters

### Node Configuration

* **Prompt**:

  Instructions shown to the operator when the workflow pauses. Use format strings to reference upstream outputs.

  > *Awaiting your approval for this invoice*

  > *Please review the following analysis: \{LLM output}*

  > *Customer \{workflow\_inputs.customer\_name} has requested a refund. Approve or reject?*

<AccordionGroup>
  <Accordion title="Advanced Settings">
    <ul>
      <li>
        <strong>Form Fields</strong>: Define custom input fields to collect structured data from operators:

        <ul>
          <li><strong>Text</strong>: Short text input</li>
          <li><strong>Textarea</strong>: Long text input</li>
          <li><strong>Select</strong>: Dropdown selection</li>
          <li><strong>Checkbox</strong>: Boolean yes/no</li>
        </ul>
      </li>
    </ul>
  </Accordion>
</AccordionGroup>

## Expected Inputs and Outputs

* **Inputs**:

  * The node accepts text input that can be referenced in the prompt using format strings

* **Outputs**:

  * Dynamic output ports based on configured form fields
  * Default "response" field if no custom fields are defined

## Use Case Examples

1. **Approval Workflows**:

   Pause workflows for manager approval before proceeding with high-value transactions or sensitive operations.

2. **Content Review**:

   Request human review of AI-generated content before publishing or sending to customers.

3. **Exception Handling**:

   When automation encounters uncertain situations, pause and ask operators for guidance on how to proceed.

## Error Handling and Troubleshooting

* **Workflow Timeout**:

  Workflows paused for human input will remain active until input is provided or the workflow times out.

* **Missing Field Keys**:

  Ensure all custom form fields have unique keys to avoid conflicts in output data.

* **Notification Setup**:

  Configure notifications to alert operators when workflows are waiting for their input.

If you encounter any issues not covered in this documentation, please reach out to our [support team](mailto:dev@pathlit.ai) for assistance.

## Relevant Nodes

<CardGroup>
  <Card title="Conditional Node" href="/docs/nodes/conditional">
    Make automated decisions without human input
  </Card>

  <Card title="Router Node" href="/docs/nodes/router">
    Route workflows based on AI-powered decisions
  </Card>

  <Card title="Webhook Trigger" href="/docs/nodes/webhook-trigger">
    Resume workflows via API
  </Card>
</CardGroup>