SubStringCount condition not working with more than one value

[ashmitp869]

Hi there,

Initally in section access for variable ACCESSDETAIL I do have 'Y' and 'N'.

With that a text box use to show when the value is "Y"

thus in the layout condition - this expression is used

 =SubStringCount('*|Y' , MinString({$<NTNAME={$(=upper(OSUser()))}>} ACCESSDETAIL))

But now the scenario change , like ACCESSDETAIL can have value like 

So now when a user have this three value , this expression is not working

 =SubStringCount('*|Y' , MinString({$<NTNAME={$(=upper(OSUser()))}>} ACCESSDETAIL))

My req is, if ACCESSDETAIL contain "Y" , then the condition or expression should work -

=SubStringCount('*|Y' , MinString({$<NTNAME={$(=upper(OSUser()))}>} ACCESSDETAIL))

When selecting a user the ACCESSDETAIL value is N OR Y

But in this scenaio,it having more that one value 

How to pick Y in this case from this condition

=SubStringCount('*|Y' , MinString({$<NTNAME={$(=upper(OSUser()))}>} ACCESSDETAIL))

Thanks in advance