This document presents the development and implementation of a webshop prototype aimed at encouraging sustainable delivery choices through digital behaviour change techniques (BCTs). More broadly, this prototype serves to fulfil the SuCoLo project’s objectives, which seeks to promote sustainable logistics solutions in urban outskirts by leveraging psychological models of behaviour change and inclusive cargo-bike logistics. The prototype builds on prior research (e.g., D3.1 Scientific publication of reviewed behaviour change techniques for sustainable logistics and Supplemental Report: Best practices catalogue of behaviour change techniques to encourage sustainable consumer delivery choices) that reviewed and catalogued effective BCTs for influencing consumer behaviour toward green delivery options. These interventions include strategies like providing information about environmental impacts, social comparisons, material incentives, restructuring digital environments to "nudge" users toward sustainable choices, and more. In the same vein, co-creation activities with webshop owners and consumers were also incorporated to ensure the solutions are practical and widely adoptable. This webshop underwent several development iterations, and now several variations of it with different BCTs will be tested among an Austrian sample. You can access a copy of the UX and customer journey of the webshop prototypes utilised in this study here: https://zenodo.org/records/15180498