Procedure or function expects parameter name which was not supplied

Question

SQL 2008R2 - BIDS
I added an additional parameter to my SSRS Report.  I set it up identical to a couple other parameters already in the report.  I added the parameter to the dataset.  I added the parameter to the stored procedure and verified that it functions
correctly in SSMS.
When I Preview the report I get the Procedure expects parameter error even though the parameter is in the parameter list with a value (0) assigned.
How can I make this work???

Answer 1

Hi John,
The most likely is the parameter name on the dataset , doesnt match the parameter you created ,the best was is to delete the parameters related to the dataset   and apply the stored procedure again  to a dataset it willl create the parameters  automatically,i
 have replicated the logic  below is  an example
Create Procedure testp
@Country Varchar(max),
@Year Int
as
SELECT     DimSalesTerritory.SalesTerritoryCountry, DimDate.CalendarYear, FactInternetSales.SalesAmount
FROM         FactInternetSales INNER JOIN
                      DimDate ON FactInternetSales.OrderDateKey = DimDate.DateKey INNER JOIN
                      DimSalesTerritory ON FactInternetSales.SalesTerritoryKey = DimSalesTerritory.SalesTerritoryKey
where SalesTerritoryCountry =@Country
And DimDate.CalendarYear=@Year
I have just renamed one of the parameter  for year to YYear and it throws an error similar to yours 
Many Thanks
Chandra
Please mark as answered If this helps to solve your issue.