Receipts which have been fully paid off are automatically locked to prevent people from tampering with them. Receipts are generally only unlocked if there is a balance on them.
To Unlock an old receipt...
- Double Click the Padlock Icon on the Till Receipt.
- Enter Your Pin Number.
- The receipt is now unlocked.
To Re-lock the receipt, repeat steps a and b. The button is shown below, with the receipt in locked mode.

