> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.fynapse.app/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.fynapse.app/_mcp/server.

# Accounting Engine Configuration

> Learn how to configure the Accounting Engine in Fynapse to meet your organization's specific needs by following a step-by-step user journey.

> **Info**
>
> The majority of this configuration is performed by users with the following security roles assigned:
>
> * [Editor](/documentation/instance-management/security/default-system-roles/editor)

## Journal Types

[Journal Types](/documentation/processing-configuration/journal-configuration/journal-types) - permanent and reversing,
determine the behavior of a Journal within Fynapse. They have to be properly assigned to Posting Components on
the Accounting Rules Navigator, to ensure correct processing within the Accounting Engine.

## Event Mappings

[Event Mappings](/documentation/accounting-engine/mapping) - in the Accounting Engine, each Posting Component
can be mapped to a single or multiple Business Event Types. The Posting Components mapped to each
Business Event Type indicate which debit or credit entries to create for the given Business Event,
based on the defined Posting Patterns.

## Posting Components

[Posting Components](/documentation/accounting-engine/data-in-the-accounting-engine#posting-components)
are configurations of DR/CR patterns which are the first step in creating Journals.
Based on the criteria defined in a Posting Pattern, a Business Event will generate a number of Debit and Credit records.

## Account Lookups

[Account Lookups](/documentation/accounting-engine/mapping#account-lookups) - Once a Business Event is matched
with a Posting Component, it has to be assigned an Account.
Only one Account can be assigned per one debit or credit entry.
The Accounts are matched to entries based on a defined list of matching criteria.