Connecting to stored procedure with date parameters

Hi,

I am new to Power BI.

I have a stored procedure which I connect to through Excel.  I am trying to do the same in BI but I get the below error message:

Details: "Microsoft SQL: Incorrect syntax near '?'."

The stored procedure needs the date parameter to run, so I understand the error, however how do I set the date parameters in BI?

I am hoping you can help.

Many thanks

Rory