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

# Exact Online

## Overview

<CardGroup cols={3}>
  <Card title="Pre-built tooling" icon="screwdriver-wrench" href="#pre-built-tooling" />

  <Card title="Pre-built integrations" icon="square-check" href="#pre-built-integrations" />

  <Card title="Access requirements" icon="triangle-exclamation" href="#access-requirements" />

  <Card title="Setup guide" icon="rocket" href="#setup-guide" />

  <Card title="Useful links" icon="circle-info" href="#useful-links" />

  <Card title="API gotchas" icon="biohazard" href="#api-gotchas" />
</CardGroup>

## Pre-built tooling

<AccordionGroup>
  <Accordion title="✅ Authorization">
    | Tools                           | Status |
    | ------------------------------- | ------ |
    | Pre-built authorization (OAuth) | ✅      |
    | Credentials auto-refresh        | ✅      |
    | Auth parameters validation      | ✅      |
    | Pre-built authorization UI      | ✅      |
    | Custom authorization UI         | ✅      |
    | Expired credentials detection   | ✅      |
  </Accordion>

  <Accordion title="✅ Read & write data">
    | Tools                                     | Status                         |
    | ----------------------------------------- | ------------------------------ |
    | Pre-built integrations                    | ✅                              |
    | API unification                           | ✅                              |
    | 2-way sync                                | ✅                              |
    | Webhooks from Nango on data modifications | ✅                              |
    | Real-time webhooks from 3rd-party API     | 🚫 (time to contribute: \<48h) |
    | Proxy requests                            | ✅                              |
  </Accordion>

  <Accordion title="✅ Observability & data quality">
    | Tools                   | Status |
    | ----------------------- | ------ |
    | HTTP request logging    | ✅      |
    | End-to-end type safety  | ✅      |
    | Data runtime validation | ✅      |
    | OpenTelemetry export    | ✅      |
    | Slack alerts on errors  | ✅      |
    | Integration status API  | ✅      |
  </Accordion>

  <Accordion title="✅ Customization">
    | Tools                              | Status |
    | ---------------------------------- | ------ |
    | Create or customize use-cases      | ✅      |
    | Pre-configured pagination          | ✅      |
    | Pre-configured rate-limit handling | ✅      |
    | Per-customer configurations        | ✅      |
  </Accordion>
</AccordionGroup>

### Customers

| Function name     | Description                           | Type                                           | Source code                                                                                                                  |
| ----------------- | ------------------------------------- | ---------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------- |
| `create-customer` | Creates a customer in ExactOnline     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/exact-online/actions/create-customer.ts) |
| `update-customer` | Updates a customer in ExactOnline     | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/exact-online/actions/update-customer.ts) |
| `customers`       | Fetches all customers in Exact Online | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/exact-online/syncs/customers.ts)         |

### Invoices

| Function name    | Description                       | Type                                         | Source code                                                                                                                 |
| ---------------- | --------------------------------- | -------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
| `create-invoice` | Creates an invoice in ExactOnline | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/exact-online/actions/create-invoice.ts) |
| `update-invoice` | Updates an invoice in ExactOnline | [Action](/guides/functions/action-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/exact-online/actions/update-invoice.ts) |

### Others

| Function name         | Description                                             | Type                                           | Source code                                                                                                                      |
| --------------------- | ------------------------------------------------------- | ---------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| `attach-file-invoice` | Uploads a file to ExactOnline and link it to an invoice | [Action](/guides/functions/action-functions)   | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/exact-online/actions/attach-file-invoice.ts) |
| `payments`            | Fetches all payments in Exact Online                    | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/exact-online/syncs/payments.ts)              |

## Access requirements

| Pre-Requisites    | Status | Comment |
| ----------------- | ------ | ------- |
| Paid dev account  | ❓      |         |
| Paid test account | ❓      |         |
| Partnership       | ❓      |         |
| App review        | ❓      |         |
| Security audit    | ❓      |         |

## Setup guide

*No setup guide yet.*

<Tip>Need help getting started? Get help in the [community](https://nango.dev/slack).</Tip>

<Note>Contribute improvements to the setup guide by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/exact-online.mdx)</Note>

## Useful links

* Register your app on the [Dev Portal](https://apps.exactonline.com/)
* Nango implements the [Auth Web APIs mentioned here](https://support.exactonline.com/community/s/knowledge-base#All-All-DNO-Content-gettingstarted) (specifically, it implements the `authorization code` flow).

<Note>Contribute useful links by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/exact-online.mdx)</Note>

## Connection configuration in Nango

* Exact online uses different domain extensions for different regions.

## API gotchas

* Access Token refreshes are only possible in the last 30 seconds of the last one being valid, or of course when there is no valid Access Token anymore.
* Access Tokens stay valid for only 10 minutes.

<Note>Contribute API gotchas by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/exact-online.mdx)</Note>