Deleting test users from the organization test users management page in the Developer Dashboard fails due to a GraphQL authorization error. The error occurs when triggering the OCDevManageOrganizationTestUsersDeleteConfirmationModalMutation operation, resulting in error code 3969005 with the message "You're not allowed to complete this action." The issue appears to stem from the user lacking permission to delete test users or a permissions misconfiguration, despite having access to view them. The error is thrown from the Relay GraphQL layer when processing the mutation response payload.