CSUBuy is a tool that allows ProCard holders to make purchases ensuring they are receiving CSU contracted pricing. Please keep in mind that Office Supplies need to be bought from Staples as they won the competitive bid for the CSU for that category. Amazon is available for other purchasing needs. If you have questions or would like to request access please contact: Joy Sun at joy.sun@sonoma.edu or Jenifer Barnett at jenifer.barnett@sonoma.edu.