Implementation of a best practice program for preoperative optimisation of patients before pancreatic surgery with a focus on screening, assessment, and intervention of 8 potentially (partly) modifiable risk factors (low (aerobic) fitness level, malnutrition, low psychological resilience, comorbidities (iron deficiency (anaemia), impaired glucose control and frailty), and intoxications (alcohol and smoking behaviour)) will improve the time to functional recovery compared to current practice.