Background: Chronic pain affects approximately 20 % of Europe’s population and has major individual and societal consequences, including reduced quality of life, psychological distress, and long-term sick leave. Effective management requires a person-centred care approach. Digital tools can play an important role in supporting person-centred communication about the impact of chronic pain on daily life between healthcare professionals and patients. Aim: To develop and feasibility test a digital self-monitoring tool for chronic pain from the patient and healthcare professional perspective. Methods: "PAS SAP" is a research and innovation project conducted at the Specialist Pain Clinic, Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, Sahlgrenska University Hospital, since 2022. Using a co-design approach, patients and healthcare professionals have participated in interviews, focus groups, and workshops to identify communication needs in chronic pain care. A self-monitoring tool, integrated into the regional IT healthcare architecture, was co-developed in 2024–2025. The tool features questions on pain, stress, sleep, physical activity, and medication use selected in partnership as per patient need. Self-monitoring data entered by patients are visualised for healthcare staff to support dialogue and shared treatment planning. The feasibility study will be conducted at the Specialist Pain Clinic, and in primary care (autumn 2025–December 2026). The feasibility study will explore usability, acceptance, and perceived value among patients and clinicians, with a focus on communication, engagement, and person-centred care processes through interviews, focus groups and quantitative data collections. Findings will guide a decision for a potential regional scale-up across all care levels and adult patient groups. Expected results: Through participatory development and digital innovation, this project aims to strengthen person-centred pain management by enhancing mutual understanding, supporting shared decision-making, and promoting continuity of care as data can be shared across care levels. Preliminary results of the feasibility study will be presented.