In MYOB BankLink Practice, if a transaction import has failed or the extracted transaction file is no longer available, you may need to re-transfer the data.
BankLink Practice marks (or flags) this data as transferred, so to re-transfer the data you'll need to clear the transfer flags. This will change the coding period from purple back to green allowing you to extract that data again.
Help at your fingertips
Press F1 in BankLink Practice for more information on this topic - then navigate to Chapter 16: Transferring coded data to your accounting system: Flagging transactions.