The Twinfield integration that books autonomously.
Connect Cortena to your Twinfield account and let AI read, categorize, approve, and post your purchase invoices directly. Built for Wolters Kluwer users who want to spend less time on data entry.
From incoming invoice to posting in Twinfield.
Cortena runs 24/7 in the background. You don't need to import, export, or start anything: invoices come in, AI does the work, and Twinfield gets a clean posting.
Invoice received
Suppliers send directly to your dedicated Cortena email address. Or upload manually via drag-and-drop. Supplier portals are also integrated.
Cortena AI
Reads the PDF line by line. Suggests ledger account, VAT code, and cost center based on your Twinfield schema. Routes for approval.
Twinfield API
Approved postings appear directly in your Twinfield accounts, including line items, VAT, cost centers, and a link to the original PDF.
The missing AI layer on top of Twinfield.
Twinfield by Wolters Kluwer is a solid online accounting package for SMBs and accountants, but it lacks built-in AI for invoice processing. Cortena fills that gap. We automatically read every purchase invoice, match it to the correct ledger account and cost center, route it to the right person for approval, and post the result directly into your Twinfield administration.
The problem Cortena solves
On average, a finance team member spends 5–8 hours per week manually posting invoices in Twinfield. That's roughly €40,000 per year of lost productivity, plus error-prone manual entry of ledger accounts, VAT codes, and cost centers.
90% autonomous within 7 days
Validated across 15 companies and hundreds of real invoices. After onboarding, Cortena independently processes the bulk of your volume.
What the Twinfield integration does.
AI invoice recognition
From email or upload: supplier, invoice date, VAT, amounts, and line items are extracted with >90% accuracy.
Ledger & cost center
Automatic mapping to your Twinfield ledger accounts, cost units, and cost centers, learns from your corrections.
Approval flow
Route invoices to the right budget holder. Multiple approvers, thresholds per amount, full audit trail.
Direct posting
Approved invoices are pushed to Twinfield in one click, no CSV exports, no manual entry.
Real-time synchronization
Suppliers, creditors, and the ledger schema are continuously synced with Twinfield via the official API.
Auditable AI
Deterministic categorization with confidence scores. You always see why a posting was suggested, which is important for your accountant.
GDPR & EU-hosted
All data processed in the EU (Hetzner Germany). Data processing agreement standard.
15-day onboarding
Week 1: integration & historical data. Week 2: AI training. After that: autonomous.
From receipt to posting in Twinfield.
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Connect your Twinfield administration
One-time OAuth connection via the official Wolters Kluwer API. Cortena imports your ledger schema, suppliers, cost centers, and VAT codes.
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Send invoices to Cortena
Via a dedicated email address, drag-and-drop upload, or automatic connection to your supplier portals.
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AI categorizes automatically
Cortena reads the PDF, extracts line item data, and suggests ledger account, VAT code, and cost center, in your Twinfield schema.
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Approve in one click
The right budget holder receives the invoice and can approve, reject, or comment instantly.
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Posted directly in Twinfield
The posting appears directly in your Twinfield administration, complete with line items, VAT, and a link to the original PDF.
Why this Twinfield API integration is different.
Twinfield integration - FAQ.
Does Twinfield have an API integration?
Yes. Twinfield by Wolters Kluwer offers an open API that allows external applications to sync invoices, ledger entries, creditors, and cost centers. Cortena uses this API for a native, real-time integration without intermediate files.
How does the Cortena Twinfield integration work?
You connect your Twinfield administration once via OAuth. After that, Cortena reads purchase invoices from email or upload, categorizes them automatically with AI based on your ledger schema, gets them approved, and posts them directly to Twinfield.
Does the integration work with Wolters Kluwer Twinfield?
Yes. Cortena is built on the official Twinfield API from Wolters Kluwer and works with all standard Twinfield administrations in the Netherlands and Belgium.
How much time does the Twinfield integration save?
Customers save on average 5 to 8 hours per week per finance team member on manual invoice processing, roughly €40,000 per year in productivity for a team of three.
Do I need to migrate my Twinfield administration?
No. Cortena runs alongside Twinfield. Your administration stays in Twinfield; we just add the AI layer for invoice processing.
How accurate is the AI categorization?
Out-of-the-box >90% for most customers. The system learns from every correction you make, so accuracy improves within the first weeks after onboarding.
Is Cortena GDPR-compliant?
Yes. All data is processed and stored in the EU (Hetzner Germany). Cortena is fully GDPR-compliant and offers a data processing agreement.
Automate your Twinfield administration.
Within 15 days, Cortena processes 90% of your invoice volume autonomously. Request a demo or start a free trial right away.
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