Today barcode is the dominant auto-ID technology in the automotive supply chain. The prevalence of barcode is likely to affect the adoption and diffusion of RFID technology. In this paper, we focus on the migration from barcode to RFID in the automotive industry and point out the relevance of barcode for future RFID rollouts. We study the case of a RFID pilot project to derive a concept for managing the technological co-existence of barcode and RFID technology. Our research demonstrates that the implementation of interfaces on multiple levels ensures the interoperability of barcode and RFID and supports companies in achieving gradual RFID migration in large-scale RFID rollouts.