Preconditions for Calling the GetCartInfo Method
This method is invoked to obtain the number of current items in the cart. The active quote must exist and the CurrentQuoteId profile attribute must be populated, otherwise the number of current items in the cart returns as 0. The Quote Item business component and the Quote business object are passed to this method as an optional input argument. In the event that these items are not passed to the method, then by default the GetCartInfo method takes Quote as a business object and SS Quote Item as a business component.