This document is a case study detailing HAZET's B2B integration strategy utilizing SEEBURGER solutions to enhance efficiency and agility. HAZET, a leading manufacturer of premium-quality hand tools, has partnered with SEEBURGER to modernize its business processes through digital transformation. The case study outlines how HAZET has transitioned from traditional EDI to a hybrid integration approach, addressing complex B2B requirements, expanding e-commerce capabilities, and implementing efficient e-invoicing practices. It highlights the SEEBURGER Business Integration Suite's comprehensive capabilities, which support APIs, cloud services, and various integration formats. The document also discusses the proactive measures HAZET has taken to comply with regulatory requirements ahead of schedule, particularly in e-invoicing. Additionally, it emphasizes the benefits of this integration strategy, including improved process efficiency, stability, scalability, and future readiness, all underpinned by a strong partnership with SEEBURGER.