# Better Enrollment > Invite-only signups, role-merging invite links, and organization invites for Better Auth. ## Getting Started - [Introduction](https://better-enrollment.octopi.ai/llms.mdx/docs/content.md): What Better Enrollment is and what it gives you. - [Installation](https://better-enrollment.octopi.ai/llms.mdx/docs/installation/content.md): Add Better Enrollment to your project and generate the schema. - [Quick Start](https://better-enrollment.octopi.ai/llms.mdx/docs/quick-start/content.md): Set up Better Enrollment step by step, for a closed app or open sign-up. ## Core Concepts - [How it works](https://better-enrollment.octopi.ai/llms.mdx/docs/how-it-works/content.md): The lifecycle of an invitation, from create to redeem. - [The two modes](https://better-enrollment.octopi.ai/llms.mdx/docs/modes/content.md): Invite-only and open, and how auto-detection picks one. - [Invites](https://better-enrollment.octopi.ai/llms.mdx/docs/invites/content.md): Invite kinds, delivery types, and how to create each one. - [The invite page](https://better-enrollment.octopi.ai/llms.mdx/docs/invite-page/content.md): One page and one redeem call handle every invite kind. - [Organizations](https://better-enrollment.octopi.ai/llms.mdx/docs/organizations/content.md): Org invites, seat limits, and platform controls. ## Reference - [Options](https://better-enrollment.octopi.ai/llms.mdx/docs/options/content.md): Every option betterEnrollment accepts, with defaults. - [Client API](https://better-enrollment.octopi.ai/llms.mdx/docs/client-api/content.md): Every client method, server-only endpoints, and rate limits. - [Error codes](https://better-enrollment.octopi.ai/llms.mdx/docs/errors/content.md): Every APIError code the plugin can return. - [Database](https://better-enrollment.octopi.ai/llms.mdx/docs/database/content.md): The tables the plugin creates, every column, and how they are indexed. ## Guides - [Security](https://better-enrollment.octopi.ai/llms.mdx/docs/security/content.md): What is blocked, why, and how tokens are stored. - [Recipes](https://better-enrollment.octopi.ai/llms.mdx/docs/recipes/content.md): Short patterns for common setups. - [Operations at scale](https://better-enrollment.octopi.ai/llms.mdx/docs/operations/content.md): Cleanup, bulk operations, indexes, and shared rate limits. - [Roadmap](https://better-enrollment.octopi.ai/llms.mdx/docs/roadmap/content.md): What is planned next.