> ## 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. # Platform Capabilities Catalogue > How expense classification, exports, imports, multi-entity setups, and user roles fit together across the platform. The concepts behind how Pleo prepares and exports accounting-ready data. These pages explain how expense classification, exports, imports, multi-entity setups, and user roles work, so you can build an accurate mental model before you start implementing. Select a section to get started. ## Classification How Tags Sync, Chart of Accounts Sync, and Tax Sync each shape how a spender classifies an expense in Pleo, before it is exported.
How the three import syncs fit together to produce what a spender sees on an expense.
 ## Exports ### Expenses How expense data moves from Pleo into your Accounting System, from the export lifecycle through to accounts mapping, data mapping, attachments, and posting behaviour.
The end-to-end sequence for exporting expenses from Pleo to an Accounting System.
How General Ledger accounts are selected once the bookkeeping method is resolved.
How Pleo expense data is translated into Accounting System fields for accurate, reconcilable exports.
What attachment data, such as receipts, is available and supported on Export Items.
Why accounting period determination and closed-period handling must be implemented within your integration.
Why draft versus final posting state must be implemented within your integration.
 #### Bookkeeping Methods The bookkeeping methods Pleo supports for recording exported expenses, and how each Export Item's configuration determines its behaviour.
The bookkeeping methods Pleo supports, and the configuration that determines which one applies.
How expenses exported from Pleo are represented as journal entries in an Accounting System.
How vendor liabilities, payments, invoices, refunds, and split expenses are represented using Accounts Payable.
 ## Imports How Tags, Chart of Accounts, and Tax Codes stay synchronised from your Accounting System into Pleo, ready to assign to expenses.
How Accounting System Dimensions map into Pleo Tags, and what your integration is responsible for building.
How your Chart of Accounts maps into Pleo Accounts, and what your integration is responsible for building.
How Tax Codes map into Pleo Tax Codes, and what your integration is responsible for building.
 ## Multi-Entity and User Roles How Pleo represents companies and user permissions, and how both affect API access and integration behaviour.
How Pleo represents organisations with multiple legal entities, and how API access is scoped to a single company.
The user roles in Pleo, and how role-based permissions affect approvals, bookkeeping, and integrations.