Indicates if the variable has been processed. This is only true after the transaction group has been submitted and the results have been mapped back to the variables.
Processed Value is only available after the related transaction item has been executed and the results have been mapped back to the variables that are related to that transaction item.
This class is used to encapsulate the concept of a variable to be used within a transaction group. This is designed to allow for the flow of data from one item in a transaction group to another. For example say you had a transaction group where you are creating a new record in EntityA and you wanted to get the newly created ID value from that record and then set it into a field called "EntityA_ID" in a record in EntityB. You can do this by telling the TransactionGroup about these variables with the AddVariable() method in the TransactionGroupBase/sub-classes.