SQL 2012 :: SSIS - Execute Stored Procedure With Parameters Does Not Work

Using the following:

SQL Server: SQL Server 2012
Visual Studio 2012

I have created an SSIS package where I have added an Execute SQL Task to run an existing stored procedure in my SQL database.

General:
Result Set: None
Connection Type: OLE DB
SourceType: Direct Input
IsQueryStoredProcedure: False (this is greyed out and cannot be changed)
Bypass Prepare: True

When I use the following execute statement where I am "Hard Coding" in the parameters, the stored procedure runs successfully and it places the data into the table per the stored procedure.

SQLStatement: dbo.sp_ml_location_load @system_cd='03', @location_type_cd=Store;

However, the @system_cd parameter can change, so I wanted to set these parameters up as variables and use the parameter mapping in the Execute SQL Task.

I have set this up as follows and it runs the package successfully but it does not put the data into the table. The only thing I can figure is either I have the variables set up incorrectly or the parameter mapping set up incorrectly.

Stored procedure variables:

ALTER PROCEDURE [dbo].[sp_ml_location_load]
(@system_cd nvarchar(10), @location_type_cd nvarchar(10))
AS
BEGIN .....................

Here is my set up, what is wrong here:

I Created these Variables:

Name Scope Data Type Value
system_cd Locations String '03'
location_type_cd Locations String Store

I added these parameter mappings in the Execute SQL Task

Variable Name Direction Data TypeParameter NameParameter Size
User::system_cd Input NVARCHAR@system_cd -1
User::location_type_cd Input NVARCHAR@location_type_cd -1

I used this SQLStatement: EXEC dbo.sp_ml_location_load ?,

It runs the package successfully but it does not put the data into the table.