Count if unique

[Jak7217]

I started off by making a formula to count unique values in column B, below.

=counta(unique(B:B))

After that, I want to make the formula more elaborate. I only want to count the unique values in column B if column A = "05". I also have a second formula where I want to count unique values in column B when column A = "05", and column F = "5".

Any help would be appreciated. I can write formulas to count unique or countifs for the 5 and 05 criteria, but I can't seem to successfully merge the two.

 

[Jak7217]

That works great, thank you for the help on this!

 

[Fluff]

You're welcome & thanks for the feedback.