v1.0.0 to v1.0.0

7 added, 7 removed. Audit A to A.

---

name: exact-online

description: |

Exact Online integration via Apideck's Accounting unified API — same methods work across every connector in Accounting, switch by changing `serviceId`. Use when the user wants to read, write, or reconcile invoices, bills, payments, ledger accounts, and journal entries in Exact Online. Routes through Apideck with serviceId "exact-online".

license: Apache-2.0

alwaysApply: false

metadata:

author: apideck

version: "1.0.0"

serviceId: exact-online

unifiedApis: ["accounting"]

authType: oauth2

tier: "1a"

verified: true

difficulty: moderate

partnershipRequired: true

sandboxAvailable: true

---

# Exact Online (via Apideck)

Access Exact Online through Apideck's **Accounting** unified API — one of 34 Accounting connectors that share the same method surface. Code you write here ports to Access Financials, Acumatica, banqUP and 30 other Accounting connectors by changing a single `serviceId` string. Apideck handles auth, pagination, rate limiting, and retries so you don't write per-tenant Exact Online plumbing.

## Quick facts

- **Apideck serviceId:** `exact-online`

- **Unified API:** Accounting

- **Auth type:** oauth2

- **Gotchas:** [page](https://developers.apideck.com/apis/accounting/exact-online/gotchas)

- **Exact Online docs:** https://support.exactonline.com/community/s/knowledge-base

- **Homepage:** https://www.exact.com/

## At a glance

- **Implementation difficulty:** moderate — Paid Developer Subscription + App Review Required for External Consumers

- **Vendor partnership required:** yes ([Exact Online App Store (Manage my apps)](https://apps.exactonline.com)) — Yes — registering your app requires a paid Exact Online developer subscription (per country); App Store listing is optional.

- **Apideck-managed credentials:** not available

- **Account type required:** Active Exact Online subscription in any supported country edition (NL, BE, DE, ES, UK, US)

- **Consumer access level:** Any user who can authorise third-party app connections; at consent time the app must be granted access to each division (administration) it needs to access.

- - **Sandbox:** available — No isolated sandbox — test with your developer subscription or a free 30-day trial (includes demo data).

- - **Costs:** Developer subscription approx. €15/month per country (excl. VAT); no per-call charges. Consumers need a paid subscription after the 30-day trial.

+ - **Sandbox:** available — No isolated sandbox — test with your developer subscription or a free 30-day trial.

+ - **Costs:** Developer subscription approx. €15/month per country (excl. VAT); no per-call API charges.

- **Rate limits:** 60 requests/minute and 5,000 requests/day per app per division; Exact Online Premium raises the daily cap to 30,000.

- - **Authentication:** OAuth 2.0 (Authorization Code). Access tokens last 10 minutes.

- - **Webhooks:** No webhooks — data sync is polling-based.

+ - **Authentication:** OAuth 2.0 (Authorization Code).

+ - **Webhooks:** No webhooks — sync is polling-based; Exact Online's native webhooks are not surfaced through this connector.

**Important to know:**

- - Exact Online runs separate country instances (NL, BE, DE, FR, UK, US, ES) — an app registered in one country cannot serve consumers in another. On this connector the region is a per-connection setting; a connection left on the default Dutch domain fails to authorize elsewhere.

+ - Exact Online runs separate country instances — an app registered in one country cannot serve consumers in another. Select and save the connection's region **before** authorizing; it defaults to the Dutch domain, so non-NL consumers fail otherwise.

- Your app must pass Exact's review before consumers outside your own Exact instance can connect — until it does, only your own subscription can be linked, which blocks pilot consumers.

- - Refresh tokens are single-use and expire after 30 days of inactivity — a dormant connection must be re-authorised by the consumer.

- Write-back is limited to transactions (invoices, bills, invoice items, payments, bill payments, journal entries); master data — customers, suppliers, ledger accounts, tax rates and credit notes — is read-only, so consumers maintain it in Exact Online.

- - If you are integrating for a single consumer, that consumer can register an internal app (an API key in their own Exact Online environment) instead — this avoids the developer's subscription, but the app can only ever be linked to that one subscription.

+ - Refresh tokens are single-use and expire after 30 days of inactivity — a dormant connection must be re-authorised by the consumer.

+ - Exact requires sequential API calls — parallel or multi-threaded requests are explicitly disallowed, so a high-volume sync must be serialised rather than fanned out.

> Facts synced from Apideck's connector metadata API — `GET /connector/connectors/exact-online` (`overview` field) is the live, authoritative version.

## When to use this skill

Activate this skill when the user explicitly wants to work with **Exact Online** — for example, "create an invoice in Exact Online" or "reconcile payments in Exact Online". This skill teaches the agent:

1. Which Apideck unified API covers Exact Online (Accounting)

2. The correct `serviceId` to pass on every call (`exact-online`)

3. Exact Online-specific auth and coverage caveats

For the full method surface (parameters, pagination, filtering), use your language SDK skill:

- [`apideck-node`](../../skills/apideck-node/), [`apideck-python`](../../skills/apideck-python/), [`apideck-dotnet`](../../skills/apideck-dotnet/), [`apideck-java`](../../skills/apideck-java/), [`apideck-go`](../../skills/apideck-go/), [`apideck-php`](../../skills/apideck-php/), or [`apideck-rest`](../../skills/apideck-rest/)

For the raw OpenAPI spec:

- **Accounting:** [https://specs.apideck.com/accounting.yml](https://specs.apideck.com/accounting.yml) · [API Explorer](https://developers.apideck.com/api-explorer?id=accounting)

## Minimal example (TypeScript)

```typescript

import { Apideck } from "@apideck/unify";

const apideck = new Apideck({

apiKey: process.env.APIDECK_API_KEY,

appId: process.env.APIDECK_APP_ID,

consumerId: "your-consumer-id",

});

// List invoices in Exact Online

const { data } = await apideck.accounting.invoices.list({

serviceId: "exact-online",

});

```

## Portable across 34 Accounting connectors

The Apideck **Accounting** unified API exposes the same methods for every connector in its catalog. Switching from Exact Online to another Accounting connector is a one-string change — no rewrite, no new SDK.

```typescript

// Today — Exact Online

await apideck.accounting.invoices.list({ serviceId: "exact-online" });

// Tomorrow — same code, different connector

await apideck.accounting.invoices.list({ serviceId: "access-financials" });

await apideck.accounting.invoices.list({ serviceId: "acumatica" });

```

This is the compounding advantage of using Apideck over integrating Exact Online directly: code against the unified Accounting API once, gain access to every connector in it. New connectors Apideck adds become available to your app without code changes.

## Exact Online via Apideck Accounting

Exact Online is a widely-used cloud accounting platform across the Netherlands, Belgium, Germany, and other European markets. Deep Apideck coverage; one of the most mature European accounting connectors in the catalog.

> **Regional variants:** `exact-online` is the default / multi-region connector. For country-specific Exact instances use [`exact-online-nl`](../exact-online-nl/) (Dutch market) or [`exact-online-uk`](../exact-online-uk/) (UK market). Pick the one that matches the user's division country.

### Entity mapping

| Exact Online entity | Apideck Accounting resource |

|---|---|

| SalesInvoice | `invoices` |

| PurchaseInvoice / Bill | `bills` |

| Payment | `payments` |

| BillPayment | `bill-payments` |

| Journal / Entry | `journal-entries` |

| GL Account | `ledger-accounts` |

| Account (Customer) | `customers` |

| Account (Supplier) | `suppliers` |

| Item | `invoice-items` |

| VatCode | `tax-rates` |

| CreditInvoice | `credit-notes` |

| Division | `companies` |

| P&L, Balance Sheet | `profit-and-loss`, `balance-sheet` |

### Coverage highlights

- ✅ Full CRUD on invoices, bills, payments, customers, suppliers

- ✅ Journal entries and VAT handling

- ✅ Multi-division — exposed as `companies`

- ✅ Multi-currency

- ✅ Financial reports (P&L, Balance Sheet)

- ⚠️ Banking imports — partial; use Proxy for bulk reconciliation

- ❌ CRM / quotation features — separate Exact surface; use Proxy

- ❌ Payroll — separate Exact product

### Auth notes

- **Type:** OAuth 2.0, managed by Apideck Vault

- **Division selection:** Exact accounts often contain multiple divisions (legal entities). Apideck connections are bound to one division by default — if the user needs multi-division access, either create multiple connections or pass the division ID via pass-through.

- **Regional data centers:** NL / BE / DE / UK accounts may route to different Exact endpoints. Use the correct connector variant (`exact-online`, `exact-online-nl`, `exact-online-uk`) or ensure the user selects the right region during Vault OAuth.

- **Refresh tokens:** Exact Online refresh tokens are rotated — Apideck handles rotation transparently.

### Example: list invoices for the current month

```typescript

const { data } = await apideck.accounting.invoices.list({

serviceId: "exact-online",

filter: { updated_since: "2026-04-01T00:00:00Z" },

});

```

## Escape hatch: Proxy API

When an endpoint isn't covered by the Accounting unified API, use Apideck's Proxy to call Exact Online directly — Apideck injects auth headers and handles token refresh. Set `x-apideck-downstream-url` to the target endpoint on Exact Online's own API:

```bash

curl 'https://unify.apideck.com/proxy' \

-H "Authorization: Bearer ${APIDECK_API_KEY}" \

-H "x-apideck-app-id: ${APIDECK_APP_ID}" \

-H "x-apideck-consumer-id: ${CONSUMER_ID}" \

-H "x-apideck-service-id: exact-online" \

-H "x-apideck-downstream-url: <target endpoint on Exact Online>" \

-H "x-apideck-downstream-method: GET"

```

See [Exact Online's API docs](https://support.exactonline.com/community/s/knowledge-base) for available endpoints.

## Sibling connectors

Other **Accounting** connectors that share this unified API surface (same method signatures, just change `serviceId`):

[`access-financials`](../access-financials/) *(beta)*, [`acumatica`](../acumatica/) *(beta)*, [`banqup`](../banqup/) *(beta)*, [`campfire`](../campfire/) *(beta)*, [`clearbooks-uk`](../clearbooks-uk/) *(beta)*, [`digits`](../digits/) *(beta)*, [`dualentry`](../dualentry/), [`exact-online-nl`](../exact-online-nl/) *(beta)*, and 25 more.

## See also

- [Accounting OpenAPI spec](https://specs.apideck.com/accounting.yml) · [API Explorer](https://developers.apideck.com/api-explorer?id=accounting)

- [`apideck-connector-coverage`](../../skills/apideck-connector-coverage/) — programmatic coverage checks

- [`apideck-best-practices`](../../skills/apideck-best-practices/) — architecture, Vault, pagination, error handling

- [`apideck-node`](../../skills/apideck-node/) — TypeScript / Node SDK patterns

- [Exact Online official docs](https://support.exactonline.com/community/s/knowledge-base)