Enter Receipt Messages
From the "Main Menu" window, select the "Maintenance Menu" and then the System Setup button. In the Receipt message box, replace the default message "Enter POS Rceipt message here" with a static receipt message text that is applicable to your store sales receipt. This message should include your standard sales return policy.
On the second Tab of the same window, there are boxes to enter individual static Buy, Store Credit and Gift Card messages.
See Below