Once the “Framework\GetTransactionData.xaml” has been completed the out arguments will be the out_TransactionItem, io_Transaction data and any of the individual field arguments if you have used them.
At this stage the values are now stored locally in the Main.xaml variables of the same names, TransactionItem, Transaction Data etc.
You pass them as ‘In’ arguments from the Main.xaml variables to the Process.xaml. Typically you’ll only pass a single transaction item in, the other transaction data variables are used for logging.
You should revisit the ReFramework training to better understand this.