SAP scripts can be used to design customized printing formats for documents like purchase orders and invoices. SAP scripts allows printing barcodes directly by combining it with barcode software. This document provides tips and tricks for using various SAP script commands and functions, including how to calculate totals and subtotals using subroutines, set different fonts on the same line, print footers only on the last page, and retrieve data without modifying the original program. It also discusses topics like orientations, protect/endprotect, and converting SAP script spools to PDF.