---
title: Overview
description: "The following properties have to be modified in order for the CRC Cell to work correctly in your environment. - Project Management Cell Properties - Datasource lookup Properties (location of the CRC_DB_LOOKUP table) - Ontology Cell Properties - CRC service…"
url: "https://i2b2.org/docs/10-4-4-1-required-environment-properties/"
updated: "2026-09-15"
category: "i2b2 Installation Guide / Chapter 4. Server Install Guide / B. Legacy Approach - Build Each Cell from Source / Chapter 10. Data Repository (CRC) Cell Install / 10.4 Configuration / 10.4.4 Configure the CRC Properties / 10.4.4.1 Required Environment Properties"
---

# Overview

The following properties have to be modified in order for the CRC Cell to work correctly in your environment.

- Project Management Cell Properties
- Datasource lookup Properties (location of the CRC_DB_LOOKUP table)
- Ontology Cell Properties
- CRC service account properties