5. Discussion and conclusions
In this article, we aimed to analyze the relation between B2B service integration and purchasing strategies to provide new knowledge on complex systems purchasing theories. This chapter summarizes the findings of the study and provides a discussion of both managerial and theoretical contributions. In this article, we set four hypotheses to develop the research model by theoretical assumptions, and these hypotheses were later operationalized to the web-based survey and tested by the PLS-SEM model. The effective sample consisted of 143 valid responses from the management of an infrastructure network service provider, which was contacted via the CRM system. Table 4 summarizes the findings, which showed several features of the antecedents of system purchasing.