Transaction locking will prevent any changes or deletions to bank transactions prior to a certain date and is something we highly recommend you enable after you have completed a reconciliation and VAT return. Transaction locking can be enabled on two levels:

1. Globally – this can be enabled for all bank accounts by going to Settings > Advanced Settings > Tick the box for Transaction Locking > Enter in the date to lock transactions up to > Click Update
2. Per Bank Account – to lock a single bank account just go to Bank > Edit Details button next to the bank account you wish to lock > Tick Transaction Locking > Enter in the date to lock transactions up to > Click Update