Minden, North Rhine-Westphalia, Germany
🟦 Why AR hurts In a world of instant everything, clients won’t wait for batch jobs and paperwork—they want real-time, self-service billing. Yet many SAP-based organisations still e-mail PDFs, chase remittances, and field endless “Where’s my invoice?” calls. Result: bloated DSO, overloaded service desks, and cash that lands weeks late. 🟦 How we fix it I co-founded KUMULON to turn the customer experience into your cash-flow advantage. KUMOsphere is a 100 % SAP-native B2B payment portal that you make available to your customers. They can: • View every open item and download invoices • Pay instantly (card, PayPal, bank) or part-pay / split-pay • Dispute charges and track status — no e-mails, no spreadsheets All data stays inside SAP S/4HANA—no middleware, no replication, full clean-core compliance. 🟦 What “good” looks like ✦ Noticeably lower Days Sales Outstanding after go-live ✦ Significantly fewer invoice-related enquiries to shared-service desks ✦ Runs on SAP BTP, fetches data in real time from S/4HANA, and stores zero sensitive data outside the core 🟦 Let’s talk Own cash-flow health and want customers to enjoy paying you sooner? Hit Connect with a short note and let’s explore quick wins. 💡 When I’m not streamlining AR… …you’ll find me on the tennis court—always chasing the next efficiency boost, on the court and in finance.
I shape vision, product, and go-to-market for KUMOsphere, the SAP-native B2B payment portal that turns customer self-service into faster cash flow. *Key contributions & outcomes* Product strategy - Designed KUMOsphere on SAP BTP with clean-core principles—reads live data from S/4HANA and stores no sensitive information outside the ERP. Customer impact - Organisations running KUMOsphere realise faster cash conversion and markedly fewer invoice-status enquiries within weeks of go-live. Market traction - Secured marquee pilot customers and built a robust pipeline by engaging Finance & AR leaders with value-driven outreach. Partnerships & ecosystem - Collaborate with SAP BTP specialists and payment-service providers to keep the portal payment-method agnostic. Mission: Help enterprises unlock cash faster—without middleware, batch jobs, or data silos.
I steer architecture, product strategy and delivery for Receipt4S®, our SAP-certified on-premise add-on that keeps every point-of-sale (POS) transaction audit-proof and fully compliant with German fiscal law. *Key responsibilities & outcomes* Product architecture & ownership – Designed the ABAP-based add-on entirely with SAP standard tools, embedding Fiori/UIs and archiving into ECC and S/4HANA without external middleware or data replication. Technical leadership – Lead a cross-functional team of ABAP developers and functional consultants; set coding standards, run design reviews, and approve each new feature release. Compliance & certification – Guided Receipt4S through SAP certification and legal audits; implemented DSFinV-K export, TSE signature, and automated completeness checks so tax auditors can retrieve Z1/Z2/Z3 data on demand. Customer impact – Retailers and other cash-intensive businesses gain faster audit readiness, eliminate manual POS data checks, and achieve end-to-end transparency from receipt to FI document. Market traction – Won marquee retail chains and built a robust pipeline by engaging Finance, Tax & IT leaders with value-driven demos and compliance workshops. Ecosystem partnerships – Collaborate with certified TSS providers and SAP-archiving partners to keep the solution hardware-free yet future-proof. Mission: Deliver bullet-proof POS data compliance inside SAP—no black-box systems, no silos, just audit-ready data at the click of a button.