1. Select the Tip button which is the second purple button from the left on your terminal.
  2. A prompt will show on the screen.
  3. Search your transaction by clerk, amount, account, or invoice.
  4. Select the transaction you want to adjust the tip for.
  5. Press Enter key.
  6. Confirm that is the transaction you want to run.
  7. Select F1 to adjust.
  8. Enter the new amount.
  9. Press Enter key.