> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.mercoa.com/_mcp/server.

# Common Concepts

## Docs

- [Overview](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/concepts.md)
- [Entities](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/entities.md)
- [Entity Groups](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/entity-groups.md)
- [Entity Users](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/entity-users.md)
- [Foreign ID](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/foreign-id.md)
- [Transactions](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/transaction-statuses.md)
- [Notifications](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/notifications.md)
- [Role-Based Access Control (RBAC)](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/rbac.md): Comprehensive documentation explaining Mercoa's RBAC system, including concepts, configuration, best practices, an example workflow, and a full list of available permissions.
- [Webhooks](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/webhooks.md)
- [JWT Authentication](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/jwt-tokens.md): Learn how Mercoa uses JWT tokens for frontend authentication, including token creation, revocation, and session management.
- [Custom Fields](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/custom-fields-and-metadata.md)
- [Business Representative](https://docs.mercoa.com/embedded-ap-ar/home/common-concepts/business-representatives.md)