SAP SUIM (System User Information Management) is also known as the user information system. It is a tool for collecting and reporting information about user profiles and authorizations in the SAP system. SUIM is used to query, report, and analyze user data. With this tool, information can be obtained about what operations users registered in the SAP system can perform, which objects they can access, and when they performed these operations or accessed these objects.
SUIM also provides the ability to examine user profiles. Thus, information can be obtained about which profiles a user has, which roles they perform, and what authorizations those roles contain. You can use the SUIM transaction code to directly access the SUIM screen.