Also called Return Material or GoodsA merchandise or materials which are used to satis... Authorization (RMAReturn Material Authorization. or RGAReturn Goods Authorization.). A form generally required with a warranty/return which helps the company identify the original productSomething that has been or is being produced. and the reason for the return. The RPA number often acts as an orderAn order is a request to ship products, following ... form for the work required in repair situations or as a reference for credit approval.