Abstract: The purpose of this study was to validate the proposition that in a business buyersupplier relationship, the variables trust and commitment influence satisfaction. Satisfaction then influences cooperation, coordination and continuity. A research model showing the hypothesised relationships was first tested in an original study before being replicated in the current study. Both the original and replication studies followed a quantitative approach and targeted large companies in South Africa. In the original study, data was collected from 500 large South African companies while in the replication study data was collected from 250 large companies. Structural equation modelling (SEM) was used to analyse the data. The results in both studies provide support for the proposed model in the study.