This adds a bundle along with selected products, options, and updated quantity to the cart.

Code Sample

The sample below enables you to add a bundled product with a specific product ID and its associated quantity to a specific cart with a specific cartID. For example, a user selects a bundled product-Laptop+Mouse and clicks Add to Cart, the request to add bundle to the cart is invoked and the bundle with the specific product ID is added to a cart with the cart ID.

/**
 * The below method demonstrates how to add a bundle product to an existing cart (every quote has a cart)
 * Lets assume the Quote's Cart is blank and Laptop is a bundle product and its two options are Keyboard and Mouse
 * The input of this method is Quote Number and the Id of the Laptop bundle product
 * Inside the method we will add the Laptop bundle product and also its two options Keyboard and Mouse to the cart
 */
public static void addBundle(String quoteNumber, ID bundleProductId)
{
	
	List<Apttus_Config2__ProductConfiguration__c> cart = [SELECT Apttus_Config2__PriceListId__c,Id FROM Apttus_Config2__ProductConfiguration__c WHERE Apttus_QPConfig__Proposald__r.Name = :quoteNumber LIMIT 1];
	
	if(!cart.isEmpty() && bundleProductId != null) 
	{
		
		// Assume the quantity and selling term for the bundle product and its options is 1
		Integer quantity = 1;
		Integer sellingTerm = 1;
		
		// Create the request object
		Apttus_CPQApi.CPQ.AddBundleRequestDO request = new Apttus_CPQApi.CPQ.AddBundleRequestDO();
		request.CartId = cart.get(0).Id;
		
		// Add the bundle product to the request
		request.SelectedBundle = new Apttus_CPQApi.CPQ.SelectedBundleDO();
		request.SelectedBundle.SelectedProduct = new Apttus_CPQApi.CPQ.SelectedProductDO();
		request.SelectedBundle.SelectedProduct.ProductId = bundleProductId;
		request.SelectedBundle.SelectedProduct.Quantity = quantity;
		request.SelectedBundle.SelectedProduct.SellingTerm = sellingTerm;
		
		// Get all the options of the bundle product
		Apttus_CPQApi.CPQ.ProductOptionGroupSearchResultDO productOptionGroupResult = Apttus_CPQApi.CPQWebService.getOptionGroupsForPriceListProduct(cart.get(0).Apttus_Config2__PriceListId__c, bundleProductId);
		if(productOptionGroupResult.HasOptionGroups) 
		{
			// Add the option products to the request
			request.SelectedBundle.SelectedOptions = new List<Apttus_CPQApi.CPQ.SelectedOptionDO>();
			for(Apttus_CPQApi.CPQ.ProductOptionGroupDO productOptionGroup : productOptionGroupResult.OptionGroups) 
			{
				if(productOptionGroup.HasOptionComponents) 
				{
					for(Apttus_CPQApi.CPQ.ProductOptionComponentDO productOptionComponent : productOptionGroup.OptionComponents) 
					{
						Apttus_CPQApi.CPQ.SelectedOptionDO selectedOptionDO = new Apttus_CPQApi.CPQ.SelectedOptionDO();
						selectedOptionDO.ComponentId = productOptionComponent.ComponentId;
						selectedOptionDO.ComponentProductId = productOptionComponent.ComponentProductId;
						selectedOptionDO.Quantity = quantity;
						selectedOptionDO.SellingTerm = sellingTerm;
						request.SelectedBundle.SelectedOptions.add(selectedOptionDO);
					}
				}
			}
		}
		
		// Execute the addBundle routine
		Apttus_CPQApi.CPQ.AddBundleResponseDO response = Apttus_CPQApi.CPQWebService.addBundle(request);
			
		System.debug('Line Number of added bundle = ' + response.LineNumber);
	}
}

<soapenv:Envelope
    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
    xmlns:cpq="http://soap.sforce.com/schemas/class/Apttus_CPQApi/CPQWebService"
    xmlns:cpq1="http://soap.sforce.com/schemas/class/Apttus_CPQApi/CPQ">
    <soapenv:Header>
        <cpq:SessionHeader>
            <cpq:sessionId>00DZ000000NAEIA!ASAAQFRdZcUFQ8LrHGF_qYNN9deP0ee.07JRqgeS3IF8IIlzILBdAOPySGSkif1VBtALP6pryVNOXfhn0faHOpGsc9GFVLl0</cpq:sessionId>
        </cpq:SessionHeader>
    </soapenv:Header>
    <soapenv:Body>
        <cpq:addBundle>
            <cpq:request>
                <cpq1:CartId>a1OZ0000002YdIH</cpq1:CartId>
                <cpq1:SelectedBundle>
                    <cpq1:SelectedProduct>
                        <cpq1:ProductId>01tZ0000004lUXt</cpq1:ProductId>
                        <cpq1:Quantity>1</cpq1:Quantity>
                        <cpq1:SellingTerm>1</cpq1:SellingTerm>
                        <cpq1:StartDate>2020-05-14</cpq1:StartDate>
                        <cpq1:EndDate>2020-05-15</cpq1:EndDate>
                        <cpq1:Comments>None</cpq1:Comments>
                    </cpq1:SelectedProduct>
                    <cpq1:SelectedOptions>
                        <cpq1:ComponentId>a1YZ0000002jPuS</cpq1:ComponentId>
                        <cpq1:ComponentProductId>01tZ0000004u2io</cpq1:ComponentProductId>
                        <cpq1:Quantity>1</cpq1:Quantity>
                        <cpq1:SellingTerm>1</cpq1:SellingTerm>
                        <cpq1:StartDate>2020-05-14</cpq1:StartDate>
                        <cpq1:EndDate>2020-05-15</cpq1:EndDate>
                        <cpq1:Comments>none</cpq1:Comments>
                    </cpq1:SelectedOptions>
                </cpq1:SelectedBundle>
            </cpq:request>
        </cpq:addBundle>
    </soapenv:Body>
</soapenv:Envelope>

<soapenv:Envelope
    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
    xmlns="http://soap.sforce.com/schemas/class/Apttus_CPQApi/CPQWebService"
    xmlns:AddBundleResponseDO="http://soap.sforce.com/schemas/class/Apttus_CPQApi/CPQ">
    <soapenv:Body>
        <addBundleResponse>
            <result>
                <AddBundleResponseDO:LineNumber>8</AddBundleResponseDO:LineNumber>
            </result>
        </addBundleResponse>
    </soapenv:Body>
</soapenv:Envelope>