COGS approval workflow - NCOGS purchase orders can only be approved (through workflow) by authorized persons within the authorized limits in the authorization scheme, and unapproved purchase orders cannot be processed. Central procurement departments are responsible for approving Purchase Orders prior to budget approval by budget holders in the different OPCO’s. The routing of the workflow to procurements depends on the country and material group. The routing to the budget holders depends on the organization raising the PO (company, purchase organization and purchase group).