Count Rows of a Visual Table

It looks like the number of rows is determined by unique combinations of EMAIL ADDRESS, ARTIFACT SUBMISSION, and COURSE.

Assuming these are all columns of a single table named Table1, I'd expect something like this to work:

COUNTROWS (
    SUMMARIZECOLUMNS (
        Table1[EMAIL ADDRESS],
        Table1[ARTIFACT SUBMISSION],
        Table1[COURSE]
    )
)

Hi barragan82,

Thank you for reaching out to the Microsoft fabric community forum. Thank you AlexisOlson  for your input on this issue. 
 
After reviewing the details you provided, I was able to reproduce the scenario, I have used it as sample data on my end and implemented it.   

Dax Measure:   

Row Visual Count = 
IF(
    ISINSCOPE('Instructors'[EMAIL ADDRESS]) && ISINSCOPE('Instructors'[COURSE]),
    1,
    COUNTROWS(
        SUMMARIZE(
            'Instructors',
            'Instructors'[EMAIL ADDRESS],
            'Instructors'[COURSE]
        )
    )
)

If this post helps, then please give us ‘Kudos’ and consider Accept it as a solution to help the other members find it more quickly. 
 
Thank you.