Table level Security not working as expected

Hi abhiram342 ，

According to your description, I create a sample, and apply your code, got the opposite result you expected.

The meaning of "NOT ISEMPTY(FILTER(VALUES(User),User[User Alias] = USERPRINCIPALNAME()))" is that user is in User Table, so you should remove NOT here, modify to:

IF (
    ISEMPTY ( FILTER ( VALUES ( User ), User[Alias] = USERPRINCIPALNAME () ) ),
    FALSE (),
    TRUE ()
)

Get the correct result.

I attach my sample below for reference.

Best Regards,
Community Support Team _ kalyj

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