In Classic UI we can just display the portlet to which user has access on a dashboard. When these portlets are configured via Channles in New UI, it gives Error 401 - Unauthorized if user does not have access.
For example, in a scenario where there are channels C1, C2, C3, C4 configured on Page module.
A business rule can be used to hide channels configured as module using 'Access Groups' condition to overcome 401 error. However, the access management doesn't work as it is in Classic.
If a user is part of both the groups (T1 and T2) this is how the behavior is:
We suggest transitioning to reporting in the New UI rather than continuing with the Classic Portlet via channels. The new reporting workspace offers a more efficient and scalable alternative for presenting user-specific data and modules, mitigating the need for intricate business rules to control channel visibility.