This document is the first White Paper of the SNS JU TMV WG and aims to provide a consolidated report on the 6G KPIs definitions and target values as currently defined in the context of R&D projects funded under the SNS JU Phase I and Phase II. It provides the view of the contributing SNS JU projects on the KPIs considering the KPIs categories identified in the current version of the Recommendation ITU-R M.2160, (11/2023) “ITU-R: Framework and overall objectives of the future development of IMT for 2030 and beyond” [3], along with initial target values. It also addresses the gaps in the definitions of the new IMT-2030 (currently only defined as targets for research and innovation) by proposing how they can be technically interpreted and evaluated.