Quickbooks prior year reconciliation

I need some adjustments on the 19/20 financial year in Quickbooks so that it matches the year end accounts and then the year needs to be closed in Quickbooks so I can begin reconciliation of 20/21.
I will provide the year end figures that the trial balance needs to match to. Most of the transactions are in Quickbooks so this should only take an hour or two if you know what you're doing.