Input Parameter that is 'Derived from Procedure' does not return anything

I did the following:

1) Created a stored procedure that simply returns a string 'abc' as output.

2) Called it using the call statement and it displayed 'abc'.

3) Created an Input Parameter "IP_TES"T with Parameter Type = 'Derived From Procedure'.

4) Created a Calculated Column "CC_TEST" that takes its value from the Input Parameter from step 3. In Expression, it displays $$IP_TEST$$.

5) On execution, CC_TEST does not display anything, although the view does activate correctly.

Why isn't the Input Parameter not returning anything?

Note that the string is of type VARCHAR.