In this study, a research model investigates the influence of various factors of the outsourcing relationship that condition partnership quality. The factors considered as determinants of outsourcing partnership quality are the strategic benefits and the degree of outsourcing. Partnership quality is based on relationships governed by confidence, commitment, business understanding, shared benefits and risks, and conflict resolution. The model also studies the influence of the partnership quality between the supplier and the hotel on the outsourcing performance, considered from the financial, strategic, and overall satisfaction perspectives. To test the hypotheses, this study used the Partial Least Squares (PLS) technique with a sample of managers in an important tourist destination in Spain. The results of the study confirm that the strategic benefits and the degree of outsourcing perceived by the manager are determinant factors of the quality of the outsourcing partnership. In addition, they show that closer relationships with service suppliers imply greater outsourcing performance. Finally, implications for theory and practice are discussed.Many organizations experience difficulties in forming and managing a successful outsourcing partnership with service suppliers. Thus, for example, in the facilities management sector, many clients and suppliers are not working in advance [9]. In addition, Tamás [10] points out that inappropriate outsourcing can negatively affect operational efficiency. In this regard, Lee [11] indicates that the nature of the outsourcing relationship needs to evolve from a contract between the service supplier and the company that receives the service to a closer relationship or partnership between the two organizations. A partnership is defined as an interorganizational relationship designed to achieve the participants' shared objectives [11].Researchers believe that when organizations have relationships with other companies, they want to reach a strategic goal where the members seek shared objectives, fight for mutual benefit, and recognize a high level of interdependence [12]. Even though the use of the hotel outsourcing strategy is gaining ground, no studies have been carried out to analyze these questions.The level of outsourcing perceived by management should influence the type of interorganizational relationships developed. Hotels outsource some of the necessary activities to provide service to the client; thus, in the process of transforming resources into goods and services (outputs), it becomes necessary to manage the relationships as part of the productive system. Because of this increase in the outsourcing of activities, managers' tasks are transformed, and they become managers of interorganizational relationships. Therefore, they not only have to take care of the management of the productive system, but they also must manage the relationships among external suppliers.Previous studies on outsourcing relationships have used social theories based on trust and commitment to explain t...