Specifications include, but are not limited to: The State Procurement Office, Office of Management and Budget (STATE) is soliciting proposals to establish a cooperative purchasing contract for lockbox receivable processing services to be used by many state agencies and governmental entities (Participating Entities). CONTRACTOR will provide lockbox receivable processing services for multiple types of payment processing depending on the Participating Entity. CONTRACTOR will oversee the Participating Entity’s lockbox receivable processing (invoice remittances) submitted by mail and will process all invoices that are remitted with proper documentation and fees. Those items without proper documentation or fees will be handled on an exception basis as defined by each Participating Entity.