jats:sec<jats:title content-type="abstract-subheading">Purpose</jats:title>jats:pThe purpose of this paper is to propose an innovative buyer-supplier performance measurement system (PMS) (called relationship regulator – RelReg), aimed at stimulating collaboration on mutual performance. The RelReg is described all throughout the phases of its lifecycle: first, design features and visual representation of the new measurement framework are reported; second, guidelines on how to implement, use and review the system are provided, highlighting the role of the buyer and the supplier at each step.</jats:p></jats:sec>jats:sec<jats:title content-type="abstract-subheading">Design/methodology/approach</jats:title>jats:pA theory building and testing approach is applied. The RelReg developed features primarily ground on previous scientific contributions matched with empirical evidence collected through case studies, workshops and focus groups. The resulting conceptual model is then validated through a dyadic buyer-supplier case study.</jats:p></jats:sec>jats:sec<jats:title content-type="abstract-subheading">Findings</jats:title>jats:pTwo conceptual frameworks are provided: the RelReg dashboard – a multidimensional PMS; and the RelReg lifecycle – set of activities to be performed by both the buyer and the supplier all along the adoption process. Moreover, empirical insights on relevant issues to be considered when adopting the RelReg are reported.</jats:p></jats:sec>jats:sec<jats:title content-type="abstract-subheading">Originality/value</jats:title>jats:pThe RelReg represents an innovative and smart tool, allowing buyer-supplier dyads to collaborate on relationship performance.</jats:p></jats:sec>