This registration is a Two-Step process. Before supplying any goods or services to the County of Sacramento, the vendor must obtain a Purchase Order (PO), or Contract Shipping Order (CSO).Gov and log into your Cal eProcure account. Procurement Services is responsible for the purchasing of supplies and services through competitive bidding, as well as contract administration. Vendor Data Record (Form 204). All vendors doing business with California State University, Sacramento must complete the. This Vendor Agreement, hereinafter "Agreement," is made between the California Department of. You may use this form to amend or update your original application. A current e-mail address is required to receive notification of bidding opportunities. Prospective Bidders must complete the New Vendor Registration through.