Exact Online Inventory Integration

By Tibeau De Grauwe, FounderUpdated August 2026

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What the Exact Online connector does

Exact Online is the Benelux standard for administration, invoicing, and compliance. StockFlow is built for warehouse operations—scanning, receiving, multi-location stock, and period-end valuation. The connector keeps those roles clear: ops in StockFlow, books in Exact.

Version 1 focuses on the month-end job accountants care about for stockbeheer: take stock value at a date and book the change into mapped ledger accounts via a general journal entry.

  • OAuth connect via Exact App Center (regional hosts: NL, BE, UK, DE, FR, ES)
  • Map inventory asset + stock-variation GL accounts and a general journal code
  • Push valuation delta from Analytics → Stock Value at Date

How to connect

In StockFlow, open Settings → Integrations → Exact Online, pick your Exact region, and authorize. Select the division, load the chart of accounts, and save inventory and variation GL accounts (confirm codes with your accountant).

Generate a Stock Value at Date report with your preferred method (Average, FIFO, or LIFO), then choose Push to Exact. The first push books the full inventory value; later pushes book only the delta so you do not double-count.

  • Settings → Integrations → Exact Online, select your regional host, and authorize via App Center
  • Select the division and load its chart of accounts
  • Map inventory asset + stock-variation GL accounts and a general journal code
  • Run Stock Value at Date with your accountant-approved valuation method
  • Push: the first push books the full value, later pushes book only the delta

If a push fails or the numbers look wrong

A failed push is typically one of three things: the App Center authorization expired (re-authorize under Settings → Integrations → Exact Online), the wrong regional host was selected at connect time (NL, BE, UK, DE, FR, and ES each run separate Exact environments, so the division must match the host you authorized against), or a mapped GL account was deactivated or renumbered in Exact since the last push (re-map it and retry).

If a booked amount looks wrong, check whether it reflects a delta against the last successful push rather than the full inventory value—only the very first push on a division books the full amount. The journal entry's description includes the source report date, which is the fastest way to confirm which comparison period it covers.

What is not in v1

Product master sync, sales invoices, purchase bills, and Exact logistics stock movements are not part of this release. Octopus Divers valuation sync (Belgian dossiers) and Yuki valuation sync are also live.

Multi-division accountancy firms should map each Exact division separately—chart-of-accounts numbering commonly differs by client, and v1 does not apply one saved mapping across multiple divisions automatically.

Connect Exact Online from your dashboard

Authorize your division, map two GL accounts, and push period-end stock value in minutes.

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Frequently asked questions

Does StockFlow replace Exact Online?
No. Exact remains your finance and compliance system. StockFlow adds operational inventory and pushes period-end valuation into your mapped GL accounts.
Which Exact journal is used?
A general journal entry on the journal code you map (often a memo / general journal such as 90). Debit inventory, credit stock variation when value rises; signs flip when value falls.
Do I need an Exact App Center developer account?
End users only need an Exact Online login with permission to authorize apps. StockFlow holds the App Center Client ID and secret server-side after registration.
Which Exact regions are supported?
NL, BE, UK, DE, FR, and ES App Center hosts are all supported at connect time. Pick the host that matches where your Exact Online administration is actually registered, not just your own location.
What if my firm manages multiple client divisions?
Connect and map each division separately, since GL account numbering typically differs between clients. There is no bulk mapping across divisions in v1—set up the connection and account mapping once per division.