Instances of classes listed here can be used in calculation logics. If you use any other, you get the "Unexpected type" error message. 

General Type Objects

• AbstractCollection
• AbstractProducer.ResultIterator
• ApprovalState  
• AttributedResult
• BoMTreeRecord
• Boolean
• CalculationResult
• Calendar
• Closure
• ConfiguratorEntry
• ContextParameter
• CustomerGroup
• DashboardController
• DataLoader
• DatamartContext
• DatamartQueryResult
• DatamartRowSet
• Date
• DateTime
• DateTime.Property
• DateTimeZone
• DMCalendar
• DMCalendar.TimeDim
• DMCalendar.TimePeriod
• DMCalendar.TimeUnit
• DMDataSlice
• Exception
• FieldFormatType
• FieldType
• FieldValues
• Filter
• GPathResult
• GStringImpl
• InputType
• Integer
• InvariantContext
• IRebateRecordManager
• ISandboxAPI
• ItemSummaryQuery
• Key
• LibraryMethod
• List
• Long
• Map
• Map.Entry
• MathContext
• Matrix2D
• Matrix2D.Matrix2DIterator
• net.pricefx.server.util.metamodel.Column
• net.pricefx.server.util.metamodel.dm.Column
• net.pricefx.server.util.metamodel.dm.Query
• net.pricefx.server.util.metamodel.dm.Table
• net.pricefx.server.util.metamodel.Query
• net.pricefx.server.util.metamodel.Table
• Number
• java.util.HashMap$Values
• Object[]
• org.apache.metamodel.query.Query
• org.apache.metamodel.schema.Table
• PriceFxException
• ProductGroup
• QuoteStructure
• QuoteStructure.Item
• Random
• ResultDashboard
• ResultFlexChart
• ResultGauge
• ResultMatrix
• ResultMatrix.ResultMatrixImageCell
• ResultMatrix.ResultMatrixLinkCell
• ResultMatrix.ResultMatrixOnRowSelection
• ResultMatrix.ResultMatrixOnRowSelection.TriggerEvent
• ResultMatrix.ResultMatrixStyledCell
• ResultQuote
• ResultRebateRecord
• RoundingMode
• SandboxAPI
• SandboxScriptBase
• Schema
• ScrollableResults
• Set
• StreamResults
• String
• SummaryCalculableObjectItem
• TableContext
• TieredValue
• TieredValue.Tier
• TimedObjectStatus
• TimeoutException
• WorkflowInfo
• WorkflowStepInfo

Workflow Objects

In workflow logics or in libraries:

• ApprovalStepDTO
• WatcherStepDTO
• WorkflowDTO

Domain Objects

Domain objects (Product, Customer, PriceRecord...) are converted into a map.

Classes

These classes are whitelisted, so that you can call static methods on them. 

• BigDecimal
• BuilderExtensions
• Calendar
• Closure
• ConfiguratorEntry
• CustomerGroup
• Date
• DateTime
• DMCalendar
• DMDataSlice
• FieldFormatType
• Filter
• InputType
• Integer
• Math
• Matrix2D
• Node
• PriceFxException
• ProductGroup
• QuoteStructure
• ResultMatrix
• String
• StringBuffer
• StringBuilder
• TieredValue
• TimeoutException
• TimePeriod
• TimeUnit

Special Cases

These types are allowed and are subject to some other internal processing. 

• ChartBuilderResult
• FormulaElementResult