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

# Authentication Guides

> Step-by-step help for connecting your existing systems to products powered by Rollout.

These guides are for customers and end users connecting an existing CRM or other business system to a product that uses Rollout. You do not need to be a developer or build an integration.

## How connections work

<CardGroup cols={3}>
  <Card title="API key or token" icon="key">
    Copy a credential from your CRM settings and paste it into the secure connection form.
  </Card>

  <Card title="Secure OAuth sign-in" icon="arrow-right-to-bracket">
    Sign into your CRM in the secure window that opens, choose the correct account, and approve access.
  </Card>

  <Card title="CRM login" icon="user-lock">
    Enter the same account details you use to sign into your CRM.
  </Card>
</CardGroup>

<Info>
  The connection screen may use the name and colors of the product you are using. The steps are the same even when the Rollout name is not shown.
</Info>

<Card title="Follow Up Boss - How do I link my account?" href="/docs/end-user-guides/crm/follow-up-boss" icon="key">
  Create an API key in Follow Up Boss and enter it in the connection window.
</Card>

<Warning>
  Treat API keys, tokens, and passwords like passwords. Enter them only in the secure connection form. Do not send or screenshot them.
</Warning>