String ACCOUNT_NAME = 'RY_Account_002';
String PRICELIST_NAME = 'RY_PriceList';
Integer SELLING_TERM = 12;
Id CUSTOMER_PO_ID = 'a440R0000002Tif';
String SPLIT_ORDER_FIELD = 'RY_GroupingTest__c';
Id PO_ITEM_ID = 'a430R000000O2tC';
Id SOURCE_ITEM_ID = 'a0W0R000000JT9F';

Account myAccount = [SELECT Id FROM Account WHERE Name =: ACCOUNT_NAME];
Apttus_Config2__PriceList__c myPriceList = [SELECT Id FROM Apttus_Config2__PriceList__c WHERE Name =: PRICELIST_NAME];
Apttus_Config2__CustomerPOItem__c poItem = [SELECT Id, RY_GroupingTest__c, Apttus_Config2__ProductId__c, Apttus_Config2__Quantity__c, Apttus_Config2__StartDate__c, Apttus_Config2__EndDate__c FROM Apttus_Config2__CustomerPOItem__c WHERE Apttus_Config2__PurchaseOrderId__c =: CUSTOMER_PO_ID AND Id =: PO_ITEM_ID LIMIT 1];


/* 

Create Order for Customer Purchase Order Data Object */
Apttus_CPQApi.CPQ.CreateOrderForPORequestDO request = new Apttus_CPQApi.CPQ.CreateOrderForPORequestDO();

// Create the Order Input
Apttus_Config2__Order__c orderInputSO = new Apttus_Config2__Order__c();

orderInputSO.Apttus_Config2__SoldToAccountId__c = myAccount.Id;
orderInputSO.Apttus_Config2__PriceListId__c = myPriceList.Id;
orderInputSO.Apttus_Config2__PricingDate__c = Datetime.now();
orderInputSO.Apttus_Config2__OrderDate__c = Datetime.now();
orderInputSO.Apttus_Config2__OrderStartDate__c = Date.today();
orderInputSO.Apttus_Config2__OrderEndDate__c = Date.today().addMonths(SELLING_TERM);
request.OrderInput = orderInputSO;



// Add Order Properties (Optional)
request.Properties.add(new Apttus_Config2.Property('useAdvancedApproval', 'false'));
request.Properties.add(new Apttus_Config2.Property('useDealOptimizer', 'false'));



// Assign the Customer Purchase Order (For single order)
request.PurchaseOrderId = CUSTOMER_PO_ID;



// Add Order Items (Optional)

// Selecting Items
// Create Selected Purchase Order Item Data Object

Apttus_CPQApi.CPQ.SelectedPOItemDO poItemDO = new Apttus_CPQApi.CPQ.SelectedPOItemDO(); (For partial order)

//webService Apttus_Config2__LineItem__c CustomData
//webService List CustomFields

poItemDO.POItemId = poItem.Id;
poItemDO.ProductId = poItem.Apttus_Config2__ProductId__c;
poItemDO.Quantity = poItem.Apttus_Config2__Quantity__c;
poItemDO.StartDate = poItem.Apttus_Config2__StartDate__c;
poItemDO.EndDate = poItem.Apttus_Config2__EndDate__c;
poItemDO.SellingTerm = Apttus_Config2.CPQWebService.computeTerm(poItemDO.StartDate,poItemDO.EndDate,'Monthly');
poItemDO.Comments = 'Purchase order item test';
    


// Set Additional Parameters From Source Line Item
poItemDO.SourceId = SOURCE_ITEM_ID;
poItemDO.SourceFields.add('Apttus_QPConfig__Comments__c');
poItemDO.SourceFields.add('Apttus_QPConfig__ContractNumbers__c');
request.OrderItems.add(poItemDO);



// Split Order Criteria 
//request.SplitGroupFields.add(SPLIT_ORDER_FIELD); (For group by orders)



// Create the Order(s)
Apttus_CPQApi.CPQ.CreateOrderForPOResponseDO result = Apttus_CPQApi.CPQWebService.createOrderForPO(request);
system.debug('Order Id = ' + result.OrderId);