salesPartnersStruct.SetValue("PARTN_ROLE", "SP");
salesPartnersStruct.SetValue("PARTN_NUMB", "102003");
replace the above code with
// Partner
salesPartnersStruct.SetValue("PARTN_ROLE", "AG");
salesPartnersStruct.SetValue("PARTN_NUMB", "102003");
It will work.