In today's global marketplace, intricating network of business relationships among supply chain members and Service quality is recognized as a critical factor in gaining competitive advantage. The relationship of Service quality with business performance, lower costs, customer satisfaction and profitability is proven.The purpose of this paper is to assess the existence Service quality gaps in supply chain. Based on literature review, a conceptual model and a scale for measuring logistics performance were generated. Dyads of focal firms (large manufacturing companies) and their most important suppliers were addressed in two similar surveys. A total of 35 such dyads were acquired.A dual view to Service quality, a tested conceptual model and a tested scale for measuring logistics performance are theoretical and methodological contributions. The model can be used as a basis for deeper communication between customer and supplier in order to improve logistics performance and the results can be valuable to both of them.