---
title: "Feature Indexing Requirements"
slug: "feature-indexing-requirements"
updated: 2026-03-24T17:32:44Z
published: 2026-03-24T17:32:44Z
---

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

# Feature Indexing Requirements

Some main Reveal features require you to index certain text sets before use. These features will appear empty or not function in your project until the necessary text sets have been indexed.

Notably, Reveal analytics requires indexed text. Processes such as email threading, near duplicate detection, entity extraction, classification vectors, clustering, and emotional intelligence assessment are generated as part of indexing.

> [!WARNING]
> **Important**
> 
> Documents that lack indexed text won’t be subject to analytics.

| **Feature** | **Required Text Set(s)** |
| --- | --- |
| **Review Grid** | - Document_Metadata |
| **Reveal analytics and** **GenAI (Ask, aji)** | - Document_Metadata - OCR / Loaded or Extracted text sets |
| **Advanced search** | - OCR / Loaded or Extracted text sets |
| **Document Viewer and redacting** | - Native View (PDF) |
| **Spreadsheet viewing and redacting** | - Spreadsheet view |