This qualitative study investigates the structure of the buying center, the buying process and the factors that influence the buying decision of perishable products packaging. This empirical investigation is based on the case study of a major Quebec food retailer. We show that the purchase of packaging changes significantly depending on whether the product is considered more or less strategic for the organization, which determines the required level of packaging customization. Buying center structure becomes more complex as packaging customization increases. Given the multifunctionality and the interdisciplinarity of packaging, we propose a multi‐criteria analysis grid to improve buying decision efficiency and streamline communication between the various levels of the buying center.