Product · Payables

Every supplier invoice, coded and approved. Without the keying.

Cortena reads each invoice the moment it arrives, codes every line to the GL account, cost centre and VAT key your books expect, routes it through your approval matrix, and hands your ledger a booking-ready batch.

How it works

Follow one invoice through.

This is RE-2026-4471, an invoice from Elektro Bergmann GmbH. Four chapters take it from your inbox to your ledger, and your team touches it exactly once.

Chapter 01 · Capture

It starts in the inbox.

Forward your invoice inbox once. Email attachments, PDF uploads and e-invoices in ZUGFeRD or XRechnung land in Cortena and are read down to the line item, and every new arrival is checked against what is already captured. Duplicates never reach your team.

Email · PDF · ZUGFeRD · XRechnung
Chapter 02 · AI coding

Coded like your best bookkeeper would.

Every line gets a GL account, a cost centre and the right VAT key, following the chart of accounts and the habits Cortena learned from your books. When it has seen the pattern before, it codes with confidence. When it has not, it flags the line and asks instead of guessing.

GL account · cost centre · VAT key · confidence
RE-2026-4471Elektro Bergmann GmbH Coded by Cortena€1.547,00
Elektroinstallation Serverraum EG620,00Account6335 · Premises repairsCost centre2200 · OperationsVATBU 9 · 19% 99%
Kabel und Schaltmaterial248,00Account6845 · Tools, small equipmentCost centre2200 · OperationsVATBU 9 · 19% 97%
Miete Hebebühne · 2 Tage432,00Account6835 · Equipment rentalCost centre2200 · OperationsVATBU 9 · 19%Review · 74%First rental line from this supplier. Cortena suggests 6835 · Equipment rental and waits for you.
2 lines coded with high confidence · 1 held for your review
RE-2026-4471Elektro Bergmann GmbH€1.547,00
Over €1.000 · two approvers
Anna VogelCost centre owner Approved 09:58
Reminder sent via Slack · 11:30
Marc RothFinance lead Approved 11:42
Fully approved · ready to post
Chapter 03 · Approvals

Approval finds the right people.

Your approval matrix routes each invoice by amount, cost centre and entity. Approvers get a nudge in Slack or email and sign off in one click, with the invoice and its coding in front of them. Delegation covers holidays, reminders keep things moving, and every decision is logged.

Thresholds · delegation · one-click sign-off
Chapter 04 · Hand-off

Handed to your ledger, booking-ready.

Approved invoices join a posting batch with the account, VAT key and cost centre on every row and the original document attached. One click sends it to DATEV Unternehmen online. Exact Online and Twinfield are served the same way.

See the DATEV integration
DATEV · Exact Online · Twinfield
Posting batch · 14 Mar12 invoices · booking-ready
Elektro Bergmann GmbHRE-2026-44716335922001.547,00
Hetzner Online GmbHH2-9201681091200197,42
Telekom DeutschlandTD-8821368059120089,00
DHL Paket GmbHDHL-3390674091200142,60
Send to DATEV Also posts to Exact Online and Twinfield
Control

Nothing posts without your sign-off.

Cortena is built for finance teams who do not trust black boxes. Every code is visible, every decision is yours, and every step leaves a record.

Your rules

Chart of accounts, cost centres and tax keys are mapped once and followed on every invoice that comes through.

Your approval matrix

Thresholds, delegation and multi-entity routing, built in the interface and changed without an IT ticket.

A full audit trail

Every capture, edit and approval is logged and tamper-evident, with the original document attached to the booking.

Your final word

Cortena proposes, your team approves. Nothing reaches the ledger until the required people have signed off.

Proof

The numbers finance teams hold us to.

After the first weeks of corrections, around 90% of invoices are coded end to end without anyone touching them.

The invoices that do need a human take about 30 seconds each. A review and a click, not ten minutes of keying.

Most teams send their first live posting batch within 15 days of kickoff, on their own chart of accounts.

Questions

Accounts payable automation, answered.

Everything finance leads ask before they run a week of real invoices through Cortena.

  1. Cortena captures invoices from a forwarded email inbox, direct PDF uploads, and e-invoice formats including ZUGFeRD and XRechnung. It extracts header and line-item data from every document and flags duplicates before they reach your team.

  2. After a short learning period on your books, around 90% of invoices are coded to the right GL account, cost centre and VAT key without a human touch. Lines Cortena is unsure about are flagged for review, and nothing posts until you approve.

  3. Yes. Cortena codes to SKR03 or SKR04 with the correct BU key and cost centre for DATEV, and maps to your chart of accounts in Exact Online and Twinfield in the same way.

  4. You define an approval matrix with amount thresholds, delegation and multi-entity routing, all in the interface. Approvers are nudged in Slack or email and sign off in one click, and every decision is logged with who approved and when.

  5. Cortena keeps GoBD-aligned records. Every step from capture to posting is logged and tamper-evident, and the original document stays attached to its booking. All data is hosted in the EU.

  6. Most teams are live within 15 days. Setup means forwarding your invoice inbox, connecting your ledger, and mapping your accounts and approval rules. There is no IT project.

  7. Still have a question?

See your own invoices run through it.

Book a demo and bring a week of real supplier invoices. We will capture them, code them to your accounts, route the approvals, and prepare a posting batch you could send to your ledger.

Book a demo