Inhouse consulting and support for SAP ECC in modules SD, MM, and FI, Acting as a central interface between departments, IT, OEMs, suppliers, and external service providers, Translating business requirements into sustainable SAP and EDI solutions, Analyzing, designing, and optimizing automotive-specific business processes, including forecast and scheduling agreement processing, JIT/JIS call and order processes, and shipping, logistics, and ASN processes, Managing and being responsible for EDI interfaces with customers and suppliers, including mapping analysis and implementation of OEM specifications, Ensuring the integration of common EDI standards (VDA, EDIFACT, ODETTE), Analyzing and resolving production-critical incidents (e.g., missing calls, ASN errors), Supporting eInvoicing scenarios (PDF, EDI, ZUGFeRD/XRechnung) and document archiving, Driving continuous improvement and automation initiatives in SAP and EDI processes, Supporting optimization projects in SAP ECC as well as SAP S/4HANA implementation and global rollout, Creating technical documentation and conducting user training, Coaching and mentoring junior colleagues