# Manage access to a namespace
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Kubernetes role-based access control (RBAC) must be enabled and working before access control will work in Portainer.
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From the menu select **Namespaces** then select **Manage access** on the same row as the namespace you want to manage.
Select the users/teams who will have access then click **Create access**.
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Users or groups with cluster-wide roles (such as the Operator role) cannot be assigned to individual namespaces, as their cluster-wide nature applies to all namespaces in the environment.
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