In our practice with DACH Mittelstand manufacturers a familiar picture emerges: O2C projects often start with the right-tool question — process mining, RPA, AI-driven collections — and overlook the role behind it. This entry describes O2C from the perspective of managing directors who want a steerable process.
What Is Order to Cash? — Definition and the 7-Step Flow
Order to cash (O2C) spans the complete business process from a customer order to the cleared payment. It links sales, operations, and finance end to end and directly steers liquidity, working capital, and customer experience.
Order to cash (O2C) is described in the APQC Process Classification Framework v7.4 as a cross-industry core process. It starts with order capture and ends with payment clearance. Seven steps from DACH Mittelstand practice:
- Order capture — the customer order arrives (email, EDI, B2B portal, CRM) and is recorded in the ERP.
- Credit and limit check — creditworthiness is verified, the limit is set or escalated.
- Order confirmation — quantity, price, delivery date are confirmed; the delivery promise is created.
- Picking and shipment — goods are picked, packed, dispatched; the delivery note is issued.
- Invoicing — the invoice is issued; in Germany the obligation to receive e-invoices in B2B has applied since 1 January 2025.
- Receivables management and dunning — open items are monitored, escalated where overdue, disputes are handled.
- Payment clearance — incoming payment is booked against the open item; the receivable is closed.
The boundary to neighbouring processes is decisive in the ERP specification: procure-to-pay (P2P) is the mirror on the buying side, lead-to-cash extends O2C upstream with the sales phase (lead, opportunity, quote). In the Mittelstand the separation between lead-to-cash and O2C is useful because accountabilities and KPIs differ.
Why O2C Matters in the DACH Mittelstand in 2026
Three drivers move O2C in 2026 from a finance routine to a strategic steering discipline: liquidity pressure, regulatory pressure from the e-invoice obligation, and integration demand on modernised ERP landscapes.
First, liquidity pressure. Rising interest rates, fluctuating order intake, and longer payment terms make every avoidable DSO extension expensive. In our experience, more than half of DSO variance originates in the hand-offs before dunning — wrong delivery note, late invoicing, unresolved dispute.
Second, regulatory pressure. Since 1 January 2025 the obligation to receive e-invoices in B2B applies in Germany (Wachstumschancengesetz of 27.03.2024, BGBl. I no. 108); the obligation to issue is phased in through 2027/2028. Format, transmission, and validation must be reflected in process design.
Third, integration pressure on the ERP. The DSAG Investment Report 2026 shows 43% of companies increasing their SAP budget; 42% of planned S/4HANA investments go on-premises, 22% to private cloud. The Trovarit Study ERP in Practice 2024/25 adds: DACH users rate functionality positively but criticise service quality and integration interfaces. O2C sits on those interfaces.
Worked Example: Kitchen Manufacturer With 1,500 Kitchens a Year and Six Process Variants
In a project with a DACH kitchen manufacturer (~1,500 kitchens/year, ~180 employees) we saw what happens when nobody owns O2C end to end. Six process variants between sales, engineering, production, and dispatch — none documented. The fix was not technical; it was an ownership question.
The baseline was typical for firms with high variant complexity: sales captured orders differently by channel (specialist retail, direct, architectural projects, factory outlet). Engineering produced project-specific BOMs sometimes manually reworked in production. Dispatch coordinated delivery by phone with sales. Accounting issued invoices once the delivery note was signed — for architectural projects, only after final assembly.
Six unmanaged variants ran in parallel. Nobody held end-to-end accountability. Order intake worked, shipment worked. But the hand-offs between the four functions were unregulated — and DSO scattered between 28 and 96 days, with no named driver.
From the Dreher view of process management: without a named owner, O2C fragments. We appointed an end-to-end owner from operational sales — not from IT, not from finance. Within eight weeks this role mapped the six variants, defined a target variant with clear exceptions for architectural projects, and put the hand-offs on a contractual footing between departments.
Only then did we discuss tools — process mining on ERP events, a narrow RPA strip for dispute capture, a tweak to order-confirmation logic. The lesson: tool selection follows owner appointment.
What O2C Guides Tend to Leave Out
Three points rarely surfaced in mainstream O2C guides yet decisive in the DACH Mittelstand — between a steerable end-to-end process and a permanent operational headache. Mirrored across 50+ projects.
1. The Process Owner Is a Critical Mittelstand Role — Not Only a Large-Enterprise Concept
In top dictionary entries on order to cash, accountability appears at best as a generic mention. From Dreher practice it is the most important upfront decision. The APQC Process Classification Framework v7.4 describes O2C as a cross-industry end-to-end process with documented ownership. DIN EN ISO 9001:2015 section 4.4 normatively anchors the process-oriented approach with named owners in any quality-certified organisation. The Bitkom working group on digital business processes names process accountability and end-to-end thinking as key levers. We appoint the O2C owner before talking about tools — see our wiki entry on the process owner.
2. Cross-Functional Hand-off Pain: the Three Classic Breakpoints
From 50+ projects we map three recurring breakpoints. First: sales/production — unclear delivery promises because sales commits to dates production cannot meet. Second: production/logistics — delivery-date conflicts between picking, dispatch, and carrier. Third: logistics/finance — late or incomplete invoicing because shipping papers are missing or quantities differ. We work these breakpoints with value stream mapping and swim-lane workshops before any tool selection.
3. Integrated ERP Versus Best-of-Breed Stack — a Vendor-Neutral Decision
Whether O2C should run on an integrated ERP or on a best-of-breed stack of CRM, CPQ, billing, and collections tool is answered in most guides with vendor marketing. We decide vendor-neutral: per process object (customer order, delivery, invoice, open item) we name the leading system and document the direction of synchronisation in the specification. This avoids the typical duplicate and status mismatch between CRM and ERP. In our experience ICT investments deliver value mainly when data integration and process accountability are addressed in parallel — pure tool roll-outs rarely produce measurable results.
Our take
An O2C without a named process owner, without mapped hand-offs, and without a per-attribute leading-system definition is a costly standing concern — not a steerable end-to-end process.
How We Set Up O2C in the Mittelstand (4-Phase Methodology)
Four phases: owner appointment before tool, as-is capture via process mining and workshops, target design with documented hand-offs, piloting against measurable KPIs. Methodical clarity decides, not the tool.
In vendor-neutral ERP consulting we treat order to cash as the bracket between sales, operations, and finance — not as an isolated module. A four-step approach has proved itself:
- Appoint an end-to-end owner. A person with operational experience and mandate across all four functions — before any software discussion. Documented in the process management handbook.
- As-is capture. Process mining on ERP events (order, delivery note, invoice, payment) plus swim-lane workshops. Surface the real variants, not the org-chart picture.
- Target design with hand-offs. One target variant with documented exceptions. Per hand-off: defined inputs, outputs, service times, escalation paths. Master-data accountability per attribute — see our wiki entry on master data.
- Piloting with KPIs. DSO, order cycle time, invoice accuracy, dispute rate, touchless order share. Roll-out only after reliable measurement.
The decisive difference to a pure tool implementation: we advise vendor-neutrally. Process mining with Celonis, SAP Signavio, or any alternative follows from the process question. Vendor-neutral owner and process clarification pays back — otherwise the bad process is automated rather than a good one designed.
Common Mistakes in O2C
Four failure patterns recur. Three organisational (no owner, unresolved hand-offs, missing KPIs), one methodological (tool before process). The downstream fix costs a multiple of the upfront clarification.
Mistake 1 — no named end-to-end owner. O2C lives in four functional silos; nobody owns the chain. Consequence: DSO variance without a driver, broken delivery promises without escalation. The dominant root cause in more than half of Mittelstand projects.
Mistake 2 — unresolved hand-offs. As in the kitchen-manufacturer example — sales/production, production/logistics, logistics/finance. Remedy: swim-lane definition per hand-off, documented in process management.
Mistake 3 — tool selection before process clarification. Process-mining licence before owner appointment; best-of-breed stack before specification. From 50+ projects, the methodological core problem in most failed O2C optimisations. The lever only materialises once the process question is clarified upfront.
Mistake 4 — no coherent KPI measurement. DSO is tracked without context (order cycle time, invoice accuracy, dispute rate). Without that KPI bracket, project success remains a matter of opinion. Define the KPI structure before the pilot.
Our take
The mistakes are rarely technical. They are organisational and methodological — exactly where the lever of vendor-neutral process consulting sits.
Frequently Asked Questions
Order to cash is the end-to-end process from an incoming customer order to the cleared payment. It comprises seven steps: order capture, credit check, order confirmation, picking and shipment, invoicing, receivables management, and payment clearance. In the Mittelstand, O2C ties sales, operations, and finance into a steering chain and directly affects liquidity, working capital, and customer experience.
Order to cash is the sales process from customer order to cash receipt. Procure to pay is the mirror on the purchasing side — requisition, purchase order, supplier payment. They meet at one interface: the hand-off between your customer's outgoing invoice (their O2C) and the inbound invoice in your P2P. Clean EDI and e-invoicing along that interface are, from a process management view, a key lever for both sides.
An O2C that touches four functions without one person holding end-to-end accountability fragments into functional islands. From 50+ projects: while nobody owns the chain from order intake to payment clearance, each function optimises its own segment at the cost of the whole. The named process owner is a precondition for steerability, not its result.
The core KPI is days sales outstanding (DSO). Extend it with order cycle time, order accuracy, invoice accuracy, dispute rate, and touchless order share. These belong in one KPI bracket; DSO without cycle time and dispute rate is not steerable, only descriptive.
In Germany the obligation to receive e-invoices in B2B has applied since 1 January 2025 (Wachstumschancengesetz of 27 March 2024, BGBl. I no. 108). The obligation to issue is phased in through 2027/2028. This affects the invoicing step in O2C: format (XRechnung, ZUGFeRD), transmission path, and validation must be reflected in process design. Regulatory compliance becomes part of the O2C process model, not a separate IT task.
Next Steps
Before any tool or automation discussion, appoint the end-to-end process owner, map the six to ten hand-off points, and define a target variant with clearly regulated exceptions. Whoever skips this step automates the bad process. See also our digitalisation services and ERP consulting. Method-adjacent wiki entries are the process owner, master data, and the ERP system.
30 minutes with Dreher Consulting
A structured assessment of your order-to-cash — owner role, hand-off points, and KPI bracket, vendor-neutral and built on 50+ process projects in the DACH Mittelstand.
