Microsoft Fabric will implement workspace access limits from August 1 to August 31, 2025, as part of ongoing efforts to improve service quality and reliability. Once this limit is rolled out, each Fabric workspace will be limited to a maximum of 1,000 users or groups in workspace roles (Admin, Member, Contributor, Viewer). This change does not affect the number of users within a group itself. For example, a workspace with one group, that group is permitted to have over 1,000 users.