In the state of Michigan, four percent of the state's population identify as a sexual or gender minority (SGM). In Michigan, the SGM population experiences distinct challenges, which include being more likely to be unemployed, have experiences of food insecurity and less likely to receive routine healthcare compared to non-SGMs in the state. It is also likely that these experiences influence the cancer care and outcomes of SGM populations. In order to better, understand cancer health disparities across SGM populations, systematic and accurate data collection methods of sexual orientation and gender identity (SOGI) data are needed. At Karmanos Cancer Institute (KCI), work has started related to SOGI data collection, but additional information is needed to identify all the potential points of SOGI data collection in the system. Additionally, barriers exist at the oncology-provider level and patient-level, as well as a lack of understanding and education at each of these levels for the rationale related to SOGI data collection. Thus, we propose a project to better understand how SOGI data collection is currently being collected at KCI and the opportunities to improve SOGI data collection at three KCI network sites in Detroit, Bay Region (Bay City) and Central Michigan (Mt. Pleasant). Specific aims are to 1) identify oncology provider-level and patient-level barriers to collection of SOGI data; 2) develop and conduct trainings for oncology providers and staff on rationale and strategies for SOGI data collection; 3) develop and implement a patient-facing campaign to increase patient awareness and knowledge of SOGI data collection; 4) implement and evaluate SOGI data collection via both paper-based forms and electronic medical records at three Karmanos Network sites.