Meet Donnerstag.ai at ReThink Accounting 2026, 20–21 April

Meet Donnerstag.ai at ReThink Accounting 2026, 20–21 April

Accounts Payable

Stop margin slipping between PO, goods receipt and invoice

The AP RECONs match every invoice, three-way variance, GR/IR pair, vendor rebate, duplicate and dispute at the line item on the day it posts. Overpayments raised before approval, rebates enforced, GR/IR cleared continuously.

0.5–2%

Margin gain on AP spend

Near 100%

Duplicate-payment recovery rate

Three-Way Match RECON

Vendor Rebate RECON

Vendor Dispute RECON

GR/IR Clearing RECON

Duplicate Invoice RECON

The structural failure

AP breaks where price, quantity, and tax don't reconcile at the line

Three-way variances cleared manually. GR/IR balances drift into the close. Same invoice paid twice across entities. Four named failures appear in every enterprise AP stack.

Failure 01

Three-way variance drift

Price, quantity and tax variances between PO, goods receipt and invoice get cleared manually. Margin slips before the AP team can intervene.

Failure 02

Stale GR/IR balances

Goods-received / invoice-received suspense accounts cleared at period-end, not continuously. Ghost commitments and aged items distort the balance sheet.

Failure 03

Duplicate payments

The same invoice paid twice — across entities, currencies, vendor IDs, payment runs. Recovery rates collapse once the payment leaves the building.

Failure 04

Lost dispute evidence

Vendor disputes owned in email. Evidence chain incomplete. Resolution tracked nowhere. GoBD and SOX become end-of-year scrambles.

The 5 AP Recons

The AP RECON library

Each RECON covers one of your AP reconciliation use cases end-to-end. Ingestion, matching, exception workbench, audit trail, write-back. Start with one. Build your AP Layer over time.

AP · RECON 01

Customized to your case

Three-Way Match RECON

Price, quantity and tax variances between PO, goods receipt and invoice get cleared manually. Margin slips through tolerance gaps before AP can intervene; exceptions drift into month-end.

0.5–2% margin gain

Tolerance per vendor

Same-day exceptions

Match Pattern

Invoice ↔ PO ↔ Goods receipt

AP · RECON 03

Customized to your case

Vendor Rebate RECON

Rebate and volume-bonus accruals drift away from contract terms. Missed claims surface as write-offs at year-end. Margin recovery becomes a manual treasure hunt.

Claims surfaced before write-off

Contract attestation

Margin recovered systematically

Match Pattern

Rebate accrual ↔ Volume trigger

AP · RECON 05

Customized to your case

Vendor Dispute RECON

Vendor disputes get owned in email. Evidence chain incomplete. Resolution tracked nowhere. Held invoices age in suspense; vendor relationships and the audit trail both suffer.

Evidence chain complete

Approval trail logged

Faster resolution

Match Pattern

Dispute ↔ Invoice

AP · RECON 02

Customized to your case

GR/IR Clearing RECON

GR/IR suspense accounts get cleared once a month — or once a quarter. Ghost commitments and aged items distort the balance sheet, block the close and create audit findings.

Continuous GR/IR clearance

Days, not months ageing

Clean balance sheet

Match Pattern

Goods-received ↔ Invoice-received

AP · RECON 04

Customized to your case

Duplicate Invoice RECON

The same invoice gets paid twice — across entities, currencies, vendor IDs, payment runs. Once the payment leaves the building, recovery rates collapse from 100% to single digits.

Pre-payment block

Near-100% recovery

Cross-entity dedup

Match Pattern

Invoice ↔ Prior invoice

AP · RECON 01

Customized to your case

Three-Way Match RECON

Price, quantity and tax variances between PO, goods receipt and invoice get cleared manually. Margin slips through tolerance gaps before AP can intervene; exceptions drift into month-end.

0.5–2% margin gain

Tolerance per vendor

Same-day exceptions

Match Pattern

Invoice ↔ PO ↔ Goods receipt

AP · RECON 02

Customized to your case

GR/IR Clearing RECON

GR/IR suspense accounts get cleared once a month — or once a quarter. Ghost commitments and aged items distort the balance sheet, block the close and create audit findings.

Continuous GR/IR clearance

Days, not months ageing

Clean balance sheet

Match Pattern

Goods-received ↔ Invoice-received

AP · RECON 03

Customized to your case

Vendor Rebate RECON

Rebate and volume-bonus accruals drift away from contract terms. Missed claims surface as write-offs at year-end. Margin recovery becomes a manual treasure hunt.

Claims surfaced before write-off

Contract attestation

Margin recovered systematically

Match Pattern

Rebate accrual ↔ Volume trigger

AP · RECON 04

Customized to your case

Duplicate Invoice RECON

The same invoice gets paid twice — across entities, currencies, vendor IDs, payment runs. Once the payment leaves the building, recovery rates collapse from 100% to single digits.

Pre-payment block

Near-100% recovery

Cross-entity dedup

Match Pattern

Invoice ↔ Prior invoice

AP · RECON 05

Customized to your case

Vendor Dispute RECON

Vendor disputes get owned in email. Evidence chain incomplete. Resolution tracked nowhere. Held invoices age in suspense; vendor relationships and the audit trail both suffer.

Evidence chain complete

Approval trail logged

Faster resolution

Match Pattern

Dispute ↔ Invoice

Four outcomes

Four outcomes

What AP teams actually get

What AP teams actually get

01

Reconciliation Confidence

AP moves from "as good as scale allows" to "reconciled with confidence.

Automated Data ingestion, normalization, and 100% line-item coverage in real-time stops being a target and becomes the operating condition. Every match carries a confidence score, every exception is raised on the day it appears.

95%+

Automation rate

100%

Line-item coverage

Hours, not weeks

Exception backlog

02

Margin Gain on AP

Recover 0.5–2% of margin currently lost on AP spend

Three-way variance caught at the line item before approval. Vendor rebates enforced against contract terms. Duplicate invoices intercepted before payment. The margin compounds quietly — and now becomes visible.

0.5–2%

Margin gain on AP

Near-100%

Duplicate-payment block

0 overpayments

Pre-approval interception

03

Audit-Ready Close

Every AP match logged immutably

Every three-way variance, every GR/IR clearance, every dispute resolution — logged with rule, timestamp, user, confidence, rationale. GoBD, IFRS, and SOX become a byproduct of running AP, not an annual project.

100%

Line-item coverage

−30–50%

Year-end audit time

GoBD · IFRS · SOX

One trail

04

Real-Time Control

GR/IR cleared continuously. Balance sheet always close-ready

AP runs throughout the month, line-item by line-item. GR/IR clears in days, not months; unnecessary accruals released. When the close begins, the AP balance sheet is already reconciled.

T+0

Match & clearance

−87%

Manual AP work

Days, not months

GR/IR ageing

AP Data Sources

Read from the systems your AP team already runs

Native ingestion across structured and unstructured sources. Configured to your data, not bent into a generic schema.

Sources we read

Vendor invoice

PDF · EDI · ERP

Purchase order

ERP · procurement

Goods receipt

WMS · ERP · TMS

Vendor master

ERP · contract terms

Payment file

Pain.001 · ERP · Bank

What AP exits as

3-way matched line items

Tolerance-checked, T+0

GR/IR cleared continuously

Days, not months

Duplicates raised

Pre-payment · pre-approval

Immutable audit trail

GoBD · IFRS · SOX

ERP write-back

SAP · Oracle · D365

What AP exits as

3-way matched line items

Tolerance-checked, T+0

GR/IR cleared continuously

Days, not months

Duplicates raised

Pre-payment · pre-approval

Immutable audit trail

GoBD · IFRS · SOX

ERP write-back

SAP · Oracle · D365

Read-from · write-to

Built for your data

Start with one AP RECON. Build your AP Layer over time.

Reconciliation is inherently customer-specific. No two AP teams have the same vendor master, the same tolerance bands, or the same approval workflows. Every RECON is configured for the customer-specific cases. A solution that fits your ecosystem.

Live in 4–6 weeks

Read from · write to

The engine writes rules against your AP data

Where vendor invoice patterns are non-obvious — different formats, different layouts, different reference conventions — the engine drafts the match rule against your supplier base. Your AP controllers review and approve it.

Vendor-specific tolerance bands & routing

Per vendor, per category, per Flow. Tolerance bands match how your AP team actually works — strategic suppliers tighter, long-tail looser. Not a generic schema we force on you.

Human-on-the-Loop on every override

AI accelerates the matching; AP controllers own the decision. Every override is logged with rule, user, timestamp, rationale — exportable for the auditor.

95%+

Automation rate
Confidence score on every match

0.5–2%

Margin gain on AP
measured on your own data

100%

Duplicate-payment identified
pre-payment + post-payment

Up to −87%

Manual AP work
three-way + GR/IR + dispute

Validate the business case on your data

Quantify on your data.

Real data of one month of your choice. We configure and implement the first RECON, review findings, measure match-rate, money-at-risk, close acceleration potential, and audit exposure on real transactions.

Donnerstag.ai

English

ISO 27001

EU HOSTED

ZERO TRAINING

©

2026

Donnerstag.ai Technologies GmbH

Donnerstag.ai

English

ISO 27001

EU HOSTED

ZERO TRAINING

©

2026

Donnerstag.ai Technologies GmbH

ISO 27001

EU HOSTED

ZERO TRAINING

©

2026

Donnerstag.ai Technologies GmbH