SAP Consultingwith Passion

SAP development and consulting backed by 30 years of experience – from migration to S/4HANA to tailor-made extensions. With a focus on logistics.

Your challenge

Sound familiar?

When we can help

The end of maintenance for SAP ECC is approaching, but the path to S/4HANA is still unclear.
The migration is under way – but specifications, tests and custom developments need an experienced eye.
Hundreds of custom developments have to be adapted to S/4HANA.
An important business process simply does not fit the SAP standard.
An external system – web shop, carrier, specialist application – needs a clean connection to SAP.
An error or performance problem keeps coming back, and nobody can find the cause.

Then you have come to the right place. We know SAP from the inside, having spent 25 years developing SAP products. We find the cause and put practical, lasting solutions in place.

References

Who we work for

Selected customer projects

Joh. Vögele KG

Flavours & ingredients for food, cosmetics and animal feed · since 2025

voegele-ingredients.de ↗

Simplifying procurement processes with ABAP development

Where the SAP standard leaves gaps or functions have been discontinued, we develop tailor-made solutions that noticeably simplify day-to-day work in procurement and warehousing.

Custom purchasing reports

Year-on-year purchasing analysis using a range of key metrics
Material master search based on SAP Enterprise Search, including fuzzy search – replacing discontinued standard functions
Overview of purchase orders awaiting goods receipt

Enhanced SAP reports

Shelf-life report with customer-specific storage information
Additional fields in the stock-by-material report

Enhanced purchasing transactions

Packaging information carried through from purchase order via goods receipt to the batch
Pop-up in the purchase order with work instructions for purchasing staff

ABAP
SAP MM
Enterprise Search
Batch management
Reporting

DKV Mobility

Mobility services for fleets across Europe · 08/2024 – 08/2026

dkv-mobility.com ↗

Quality assurance for the migration from ECC to S/4HANA

During the move to SAP S/4HANA, we provided quality assurance for all logistics work during the migration – from design and testing to the adaptation of custom developments.

Designs & specifications

Review of more than 40 top-level designs and technical specifications covering all logistics work during the migration
Test cases for all migration phases

Custom code migration

More than 50 step-by-step adaptation guides for migrating custom developments
Technical and organisational support for the project manager

Technical analysis

Hands-on analysis directly in the system
ABAP-level guidance for the adaptation to S/4HANA

S/4HANA
Migration
Custom Code Migration
ABAP
Quality assurance

ProMinent

Metering technology & water treatment, Heidelberg · 08/2023 – 05/2024

prominent.de ↗

Custom code migration and ABAP development

As part of the move from SAP ECC to S/4HANA, we adapted the company’s custom developments to the new system – so that customer-specific processes continue to run reliably after the migration. We also developed custom reports and supported IT in day-to-day operations.

Custom code migration

Adaptation of custom developments to S/4HANA as part of the migration from ECC

Custom reports

Quality analysis of purchased parts
Production orders with the related purchase requisitions, purchase orders and sales order items or project numbers

Day-to-day IT support

Implementation of SAP Notes
Export and import of material long texts in Excel format for maintenance in several languages

S/4HANA
Custom Code Migration
ABAP
SAP PP
SAP MM
Reporting

Innovabee

SAP Gold Partner for mid-sized companies · 01/2021 – 12/2025

innovabee.de ↗

S/4HANA add-ons and enhancements for an SAP partner’s customers

Over a five-year period, we designed and implemented S/4HANA add-ons, interfaces and enhancements for an SAP partner – from the automotive industry to e-commerce.

Material replacement add-on (automotive)

Handled much of the master data integration via IDocs
Material replacement solution for the automotive industry
Integration into sales order processing as an S/4HANA enhancement, including support and further development

Web shop integration

Design and implementation of the integration between an external online shop and S/4HANA via OData services

Further S/4HANA enhancements

Pricing for the online shop, availability check (ATP) and internal stock transfers
Returns process with automatic batch creation and an enhanced standard IDoc for the carrier
Source determination with contract split (PPDS)

S/4HANA
ABAP
IDoc
OData
SAP SD
PPDS

Collaboration

CIN Solutions

Project-based collaboration in real estate management with SAP RE-FX

cin-solutions.com ↗

Customer-specific real estate management with SAP RE-FX

Working with CIN Solutions on a project basis, we support companies in real estate management using the SAP RE-FX module.

Connecting customer-specific real estate management functions to SAP RE-FX: entities, object relationships and interfaces, including business partner and financial accounting integration

SAP RE-FX
Business partner
FI integration
Interfaces

30years of SAP experience

25years in SAP product development

9+software patents as co-inventor (US & Europe)

3languages: German, English, Spanish

Expertise & Solutions

First-hand product knowledge

Benefit from our experience

Having helped build SAP software for decades, we know not only the user interface but also the data models, interfaces and dependencies between applications. Today we put this knowledge to work for our customers – reliably, thoroughly and with the aim of achieving the best possible result.

Our commitment

We combine business process knowledge with technical implementation: we understand your requirements in procurement, warehousing and sales and turn them into clean, maintainable solutions.

Whether you run a mid-sized company or a large corporation – you and your specific problem are at the centre of what we do.

Managing Director

Dr. rer. nat. Johann Kemmer

I hold a doctorate in physics and have been working with SAP for 30 years, 25 of them in SAP product development – most recently as Chief Development Expert for S/4HANA and industry solutions. Since 2021, I have been consulting and developing for SAP customers and partners through my own company.

I see myself as a problem solver: analysing business processes, finding root causes and implementing solutions that work in day-to-day operations. I combine in-depth knowledge of SAP products and data models with hands-on development – and with experience in steering major initiatives, including projects that received close attention from the board.

Get in touch to discuss your project.

Career

since 2021
Best-Run Business Consult UG – freelance SAP development and consulting: S/4HANA migration, custom code migration, add-ons and integration for SAP customers and partnersincluding DKV Mobility, ProMinent, Joh. Vögele KG and Innovabee
2013 – 2020
SAP SE – Chief Development Expert for cloud products, S/4HANA and industry solutionsincluding project lead for moving SAP’s cloud products to HANA – an initiative that received close attention from the board –, integration and go-live support for the first S/4HANA Cloud customer in 2017, backend for SAP Excise Tax
2005 – 2012
SAP AG – Development Architect and Product Owner, SAP Business ByDesignincluding Product Owner of the Partner Development Infrastructure (PDI), pilot for the migration from R/3 to Business ByDesign
2000 – 2005
SAP Markets / SAP AG – Developer and Development Architect, Enterprise Buyer Professional and Supplier Relationship Managementincluding goods and service confirmation, led cross-functional projects spanning several SRM releases
1996 – 2000
SAP AG – Software Developer, R/3 Materials Managementincluding inventory management and its interface to financial accounting, euro conversion, customer migration from R/2 to R/3
1984 – 1995
Heidelberg University – Diploma in Physics and doctorate (Dr. rer. nat.), recipient of a scholarship from the German National Academic Foundation

Detailed CV (PDF)

Services

What we do for you

Consulting and implementation from a single source

ECC → S/4HANA migration

Technical assessment, review of designs and specifications, migration QA, test cases and cutover readiness – to help your transition run smoothly.

Custom Code Migration

Analysis and adaptation of your custom developments to S/4HANA – with clear guidelines, proven step-by-step adaptation guides and hands-on ABAP support at code level.

S/4HANA extensions

Enhancements and add-ons in ABAP and ABAP OO, with RAP, CDS views and OData services – cleanly implemented, well documented and upgrade-safe.

Integration

Connecting external systems to SAP via IDocs, BAPIs and OData – from web shops and carriers to specialist applications such as real estate management.

Troubleshooting & performance

Root-cause analysis and performance optimisation in ECC and S/4HANA systems – including inconsistencies between logistics and finance.

AI-assisted development

Fast prototypes and applications based on your requirements: we provide domain and product knowledge, steer the AI-assisted implementation and test the result.

Our areas of expertise in SAP logistics

Purchasing & procurement (MM)
Inventory management
Sales (SD)
Pricing
Returns
Availability check (ATP)
Source determination (PPDS)
Stock transfers
Master data & business partners
MM/FI integration

Looking ahead

AI-assisted development

From product requirements to a working application

We develop applications with the support of current AI tools, including Claude and ChatGPT. What matters is not the tool but the context: knowing SAP processes and product requirements in depth makes it possible to direct the AI precisely and to evaluate its results reliably.

Provide contextProduct descriptions, business process documentation and functional requirements as the basis for implementation
Direct the implementationIterative development with the AI, user interface design and ongoing refinement
Validate the resultFunctional testing and evaluation of the results against the business requirements

Example: excise tax management prototype

An application with SAP S/4HANA integration, an MCP server, an n8n workflow and Git-based version control – combining SAP domain expertise with AI-assisted implementation across application, integration and workflow.

S/4HANA
MCP
n8n
Node.js
Docker
Git

Next step: We are bringing this approach to SAP development itself – with Claude Code and AI-assisted ABAP development.

Solutions

Proven in practice

Your path to S/4HANA – and beyond

From ECC to S/4HANA

We support you through both stages: the technical migration from ECC – with design and specification reviews, preparation for testing and cutover and custom code migration – followed by the adaptation and extension of your S/4HANA system.

Contact

Get in touch

Get in touch to discuss remote or on-site support

Best-Run Business Consult UG

Managing Director: Dr. rer. nat. Johann Kemmer
Address: Schillerstraße 24
69242 Mühlhausen / Baden
Germany
Phone: +49 160 90820129
Email: info@br-business-consult.de
Languages: German, English, Spanish

Send an email

Schillerstraße 24, 69242 Mühlhausen / Baden

Open map & directions ↗