The student import process should now be complete! Your existing students should be up-to-date and new pupils should be showing in Borrowers. If you are using CRC Intake, when there are new starters at your school they will be automatically dropped into the Intake table for you, ready to be transferred. If you are not using CRC Intake then if any new pupils join throughout the year, you will need to add them manually or re-import a new CSV file.
Now that the Borrowers are updated, why not look at some recommendations from Capita of what to do next?