Inclusion Criteria:  All adult tobacco users (of at least 18 years of age), including disadvantaged and vulnerable patients, receiving an in-person intervention (incl. online meetings) for tobacco cessation (smoking, snus and/or e-cigarettes) are eligible for inclusion in the project after giving informed consent. Both individual and group-based interventions can be included.  Exclusion Criteria:  Withdrawing consent. Reduced ability to give informed consent, due to inadequate language skills, dementia, and other conditions.