Dr. Hasan Güler is assisting us in improving the controlling processes in the CO module of SAP S/4HANA. We are very satisfied with his work. His expertise and structured approach have been crucial to the success of the project so far. We particularly appreciate his ability to quickly find practical solutions even when unexpected problems and last-minute changes arise. He also works very well with our team and management, coordinating all parties involved effectively and delivering clear, understandable results.

I had the pleasure of working with Hasan from 2016 to 2023 when he served as one of our Lead Consultants for Record-to-Report (R2R). Hasan’s strong process orientation, hands-on approach, and expertise in controlling were instrumental in successfully implementing our requirements into S/4HANA. Hasan consistently delivered good results and I wholeheartedly recommend him for any organization seeking an experienced and results-driven consultant in SAP.

When working with HAG, I appreciated the holistic approach. This includes both the conceptual design and the subsequent implementation in SAP S/4. As a client, you are not left alone with the “glossy slides” after the concept design.

Dr. Hasan Güler provided us with excellent support in our S/4 HANA project as part of the controlling concept development. Thanks to his proven controlling expertise and his detailed knowledge of the SAP system, he was able to build an effective and high-quality bridge between our existing SAP processes and the new S/4 HANA world. Thanks to the concepts he developed, we are now well prepared for the implementation.