Need to combine the two or more than two dotnet methods into one when the same sp or functions came

public static int Add_quote_detail(int quote_id, char quote_item_type, int quote_item_id, object contract_template_id, double quantity, object unitprice, object discount, object itemprice,
            object sub_account_no, string notes, object quote_change_detail_id, object quote_item_assignment_level, object parent_quote_detail_id, string source_table, object source_table_id, object unit_list_price,
            object predefined_discount, object predefined_discount_pct, string span_frequency, object frequency_quantity, object rating_type, bool use_list_price, object rating_method, object cam_no, object effective_date,
            object contract_effective_date, bool ratestatus, object slab_value, object UsedContractTemplateId, out string error_msg, string ActivityName = null,string higher_contract_level=null)
        {
            if (notes == "")
                notes = null;
            if (source_table == "")
                source_table = null;
            if (span_frequency == "")
                span_frequency = null;
            object[,] ParameterValue ={{"quote_id",quote_id},{"quote_item_type",quote_item_type},{"quote_item_id",quote_item_id},{"contract_template_id",contract_template_id},{"quantity",quantity},{"unitprice",unitprice},
                                      {"discount",discount},{"itemprice",itemprice},{"sub_account_no",sub_account_no},{"notes",notes},{"quote_change_detail_id",quote_change_detail_id},{"quote_item_assignment_level",quote_item_assignment_level},
                                      {"parent_quote_detail_id",parent_quote_detail_id},{"source_table",source_table},{"source_table_id",source_table_id},{"unit_list_price",unit_list_price},{"predefined_discount",predefined_discount},
                                      {"predefined_discount_pct",predefined_discount_pct},{"span_frequency",span_frequency},{"frequency_quantity",frequency_quantity},{"rating_type",rating_type},{"use_list_price",use_list_price},
                                      {"rating_method",rating_method},{"cam_no",cam_no},{"effective_date",effective_date},{"contract_effective_date",contract_effective_date},{"ratestatus",ratestatus},{"slab_value",slab_value},
                                      {"activity_name","AddProduct"},{"used_contract_template_id",UsedContractTemplateId},{"higher_contract_level",higher_contract_level}};
            //return Convert.ToInt32(DataUtils_CRM_Engine.GetValue("CRM.spI_quote_detail", ParameterValue, true));
            return DBIUtis.FetchScalar<int>(GetConnection(), "CRM.spI_quote_detail", out error_msg, ParameterValue, CommandType.StoredProcedure);
        }


 public static void Add_Service(int QuoteId, int quote_item_id, double quantity, object unitprice, object discount, object itemprice, object PV_Sub_AccNo, bool list_price, string activity_name, out string Result)
        {
            object[,] parametervalue = { {"quote_id", QuoteId }, { "quote_item_type", "S" }, { "quote_item_id", quote_item_id }, 
                                       { "contract_template_id",DBNull.Value }, { "quantity",quantity }, { "unitprice",unitprice }, 
                                       { "discount",discount },{ "itemprice",itemprice }, { "sub_account_no",PV_Sub_AccNo }, 
                                    { "notes",null }, { "quote_change_detail_id",null },{"use_list_price",list_price},{"activity_name",activity_name}};

            if (DBIUtis.ExecuteSP(GetConnection(), "crm.spI_quote_detail", ref parametervalue, out ReturnValue, out ErrorMessage) != 0)
                Result = ErrorMessage;
            else
                Result = "Service Added Successfully";

        }