We recommend using the latest bundled schema, PIDX v1.61 (click here to download the zip file).
Many of our standards work together as a bundle. If you are using multiple standard XML schemas (like Invoice Response, Price Sheet, and Field Ticket Response), make sure to use them from the same bundled schema set.
To learn more about the difference between PIDX schema release
versions, see our File Comparison chart, which gives detailed technical descriptions
of each schema release and it’s components.