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

# Systems and Access

> What Ari is connected to, what he can see and do in each system, and how to manage that access.

You decide what Ari can reach. This page covers the systems he connects to, what each
connection lets him see and do, and how to manage access over time.

## Connected systems

Ari queries your systems live at request time. He doesn't cache data or rely on periodic
syncs, so answers reflect what's true right now.

| System                                                                          | What Ari can see                                          | What Ari can do (with approval)                                                |
| ------------------------------------------------------------------------------- | --------------------------------------------------------- | ------------------------------------------------------------------------------ |
| [Stripe](/ari/integrations/stripe)                                              | Invoices, charges, subscriptions, customers, revenue data | Create invoices, send reminders, refund via credit notes, manage subscriptions |
| [Chargebee](/ari/integrations/chargebee)                                        | Invoices, subscriptions, customers, plans, payments       | Create invoices, change subscriptions, issue credit notes                      |
| [HubSpot](/ari/integrations/hubspot)                                            | Contacts, companies, deals, pipelines                     | Update contact info, create tasks, log activities                              |
| [Salesforce](/ari/integrations/salesforce)                                      | Accounts, opportunities, quotes, contracts                | Fetch quotes, check deal status, log interactions                              |
| [Attio](/ari/integrations/attio)                                                | Companies, deals, workspace records                       | Update records, log activity                                                   |
| [QuickBooks](/ari/integrations/quickbooks)                                      | Payments, invoices, expenses, balances                    | Sync reconciled transactions                                                   |
| [PandaDoc](/ari/integrations/pandadoc) / [DocuSign](/ari/integrations/docusign) | Signed agreements and their terms                         | Reference contracts for billing                                                |
| [Email](/ari/integrations/email)                                                | Sent emails, replies, thread history                      | Send from your domain, log communications                                      |

<Note>
  Live queries are the trade-off for accuracy: first answers typically take a few seconds
  while Ari fetches current data. If an invoice was paid five minutes ago, he knows.
</Note>

<Tip>
  Need something not listed here? The Enterprise tier supports additional integrations
  beyond this list. Reach out at [support@ledgerup.ai](mailto:support@ledgerup.ai) and tell us about your stack.
</Tip>

## Connecting a system

<Steps>
  <Step title="Open the control panel">
    Message Ari privately: `@Ari settings`. He sends you a link to the LedgerUp control
    panel; log in with your LedgerUp credentials.
  </Step>

  <Step title="Authorize the integration">
    Go to **Integrations**, choose the system, and authorize access through that
    system's own login. You choose the account and confirm the permissions being
    granted.
  </Step>

  <Step title="Verify it works">
    Back in Slack, ask a question only that system can answer:
    `@Ari how many customers do I have in Stripe?`
  </Step>
</Steps>

Start with your billing system (Stripe or Chargebee), then add CRM, accounting, and
document integrations as your workflows need them.

## Access is scoped

* **Write actions are approval-gated everywhere.** Connecting a system grants Ari read
  and write access, but every write still passes through
  [your approval](/ari/work-together/approvals).
* **Contracts are permission-scoped.** Documents are stored encrypted, and team members
  can only view contracts for customers they have access to.
* **Payment data stays in Stripe.** Ari never sees raw card numbers; payment methods
  are tokenized in line with PCI requirements.
* **Approver permissions.** Team members with finance or admin permissions can approve
  actions; this is configured in your workspace settings.

## Managing and removing access

Access is managed in the same **Integrations** page of the LedgerUp control panel:
reconnect an expired authorization, switch accounts, or disconnect a system entirely.
Disconnecting removes Ari's ability to read or act in that system immediately.

<Tip>
  If Ari can't answer a question you expect him to handle, check here first: the relevant
  integration may not be connected, or its authorization may have expired. See
  [Troubleshooting](/ari/reference/troubleshooting).
</Tip>