Consulting & knowledge

From the business process
to the working system.

CELTUS’s specialist website focuses on SAP S/4HANA finance: understanding requirements, configuring the system and checking the result.

Finance leadership & process improvement

Public professional references describe interim finance leadership, closing processes and financial controls. The precise services offered by each current CELTUS entity will be confirmed against the legacy website and corporate records.

Selected experience and sources →

Financial accounting

Finance processes, organisational structures and master data, with attention to how accounting connects to operational transactions. We look across the complete process—from purchasing and sales through to the financial close.

Record-to-Report (R2R)

Reliable postings, reconciliations, intercompany accounting and period-end close, bringing operational transactions together into consistent financial and management reporting.

Order-to-Cash (O2C)

Connecting sales orders, delivery, billing and receivables with revenue recognition, tax determination and collection processes, so commercial activity flows consistently into finance.

Procure-to-Pay (P2P)

Aligning purchasing, goods receipts, supplier invoices and payments with accounting requirements and controls, including GR/IR reconciliation and the treatment of costs, inventory and assets.

In ERP rollouts, we translate requirements across R2R, O2C and P2P into process designs, configuration and test scenarios, with particular attention to the handovers between operational teams and finance.

VAT & statutory reporting

Tax configuration and reporting dependencies, connecting transaction postings to jurisdiction-specific reporting requirements. Country scope must be agreed for each engagement.

Asset Accounting & IFRS 16 challenges

Asset and lease accounting require reliable data, clear responsibilities and systems that reflect the underlying business. We help connect asset acquisition, capitalisation, depreciation, transfers and retirement with day-to-day operations and financial reporting.

For IFRS 16, the challenges often begin with identifying relevant contracts and assembling complete lease data. Lease terms, renewal options, discount rates and subsequent changes need to be translated into consistent accounting processes and system requirements.

We also consider the applicable IFRS principles, local GAAP requirements and differences in tax treatment. Differences in recognition, valuation and depreciation need to be traceable across the relevant accounting views, with clear reconciliations of book-to-tax differences and adjustments supporting statutory and tax reporting.

We bring finance and IT teams together to define those requirements, configure and test the ERP solution, and establish reconciliation between lease records, Asset Accounting and the general ledger. The aim is a workable process for right-of-use assets and lease liabilities, including depreciation, interest, remeasurements and the information needed for period-end reporting and disclosures.

A practical approach

1. Understand the business objective and responsibilities.
2. Connect requirements to system configuration and dependencies.
3. Verify the result through test scenarios and reconciliation.
4. Retain useful working references and supporting materials.

Selected assignments

Our principal’s experience includes the current Vattenfall collaboration through Capgemini, KHD / Humboldt Wedag in India, Trinks (as a subcontractor to valantic), Lumileds (via NETVAERK), SAP, BP, TUI, RUAG Aviation, Accelleron and Nike, alongside earlier finance leadership roles at Walt Disney International and IDEXX Europe.

From international tax reporting to finance transformation and shared services, these assignments show how our expertise applies in different business settings.

Explore selected assignments →

The publication project

Practical SAP S/4HANA field guides are in preparation. The first proposed volume covers VAT reporting in Germany; further jurisdiction guides are described as planned. Availability, release coverage and licence terms belong on the specialist site.

For publication availability, purchase terms and delivery information, visit our specialist website.