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Have a look at any that are unmatched and see if you need to create another bank reconciliation rule that may not have been already created for previous month or the transactions are not yet entered into Readysell.
If you have a transfer of money from one bank account to another, then insert a Bank Transfer from within the Bank Reconcilation>New Banking>Bank Transfer. See link Entering a Bank Transfer
If there is a slight variance in the Deposit of Cash/Cheques or Eftpos use the Correct Value option from within the bank reconciliation. Before you use this please investigate to see why there might be a variance between what was banked and what is in Readysell. Performing a bank reconciliation manually (not importing the bank statement)
Once the Bankrec Bank reconcilation Balances click on Finalise.