How is data for partial operations stored Magento Certified Developer Guide › Category: 9. Sales › How is data for partial operations stored 0 Vote Up Vote Down Manish Prakash Staff asked 3 years ago Each order entity has a database table to store items e.g sales_flat_invoice_item sales_flat_shipment_item sales_flat_creditmemo_item These table store information on which item has been invoiced, shipping, refunded etc.