We used trait activation theory to develop a model discussing the moderating roles of challenge and hindrance stressors in the causal processes linking customer orientation, work engagement and customerfocused voice. Using a sample of 217 supervisor-subordinate dyads collected in hotels, we found that work engagement mediated the positive relationship between customer orientation and customer-focused voice. In addition, the results demonstrated that challenge and hindrance stressors moderated the relationship between customer orientation and work engagement. Further, the indirect relationship between customer orientation and customer-focused voice through work engagement was more pronounced when challenge stressors was higher rather than lower; the indirect relationship between customer orientation and customer-focused voice through work engagement was less pronounced when hindrance stressors was higher rather than lower. Finally, we also discuss the implications of these findings for theory and practice.