If you see the notification shown below, it means that the software has identified transactions that could be transfers.

By clicking on Go to the list to check, you can view the pairs of identified transactions and choose whether to confirm the suggestion or not.

By pressing Mark all as checked you will confirm all the pairs linked as a transfer, while pressing Disconnect you will unpair the two transactions.

To learn more about transfers, visit this link:

https://intercom.help/cryptobooks/en/articles/6786325-what-is-a-transfer

To find out what actions to take, visit this link:

https://help.cryptobooks.tax/en/articles/9612156-manual-transfer-management