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

# Multi-Entity Overview

Integrations must accurately link a Pleo entity to the corresponding company
in the accounting system, ensuring that all data exchange occurs correctly
and that transactions are recorded in the proper accounts.

## Key Principles

* The integration is always a **1-to-1 connection**: one Pleo entity maps to one
  company in the Accounting System.
* The user should be able to **select the appropriate company** from their
  accounting system when connecting their Pleo account.
* Correct entity mapping is critical for accurate bookkeeping and reporting.

For details on how Pleo represents companies and organisations (and how API access is scoped) see [Multi-Entity and API Scope](/docs/current/platform/multi-entity/multi-entity-and-api-scope).