HomeAll RepliesRe: What is R9Z – Control sales item 100 RPO Code? Re: What is R9Z – Control sales item 100 RPO Code? Sponsored November 13, 2012 at 10:04 am #40772 Alex LuftKeymaster Not sure what the actual RPO code is, but from what I understand, a Z at the end of one is an item delete. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored