Un-tick the Locked and Reconciled check boxes, then click to locate the open till session that you wish to lock.
Till sessions are automatically locked when the day ends.
Click the Session Number link (if applicable) or if only one till, clickto lock the till and allow till reconciliation and banking to be performed.
You can only lock a till session that is equal to today's date (as per the Session Date field).
Click the within the Lock Till Session screen.button again from
For further detailed information, refer to: Locking a Till Session for Till Reconciliation.