> For the complete documentation index, see [llms.txt](https://docs.quanti.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.quanti.io/key-concepts/fundamental-concepts.md).

# Data Concepts

## Introduction

Before configuring your connectors and leveraging your data, it is essential to master a few **fundamental concepts** that structure how your tables and synchronizations work.

{% hint style="info" %}
Why start with concepts?

Understanding these notions is essential to:

* **Properly leverage** the data delivered by Quanti
* **Interpret** the structure of your tables and their evolution
* **Identify** potential risks (duplicates, loss of history, inconsistencies)
* **Make the right choices** when configuring custom connectors
* **Communicate effectively** with technical teams
  {% endhint %}

Without this understanding, you risk misinterpreting your data or making technical decisions that are unsuitable for your business needs.

This page provides you with the foundations necessary to manipulate and analyze your data with confidence.