Can anyone recommend a way to close or lock a record with linked Line Items when needed? We have a table to create Purchase Orders and within the record, Line Items can be created. These Line Items contain the actual purchase details such as qty/hours, unit pricing, total pricing, and text details. We submit the PO to the vendor and when the subsequent vendor invoice is received, I reconcile the invoice details against the PO details and mark it as "Reconciled". My intention is, that when the main Purchase Order is marked as "Reconciled", no one else with access to this table can go in to the Purchase Order and add any additional line items to add more products/services/pricing to the PO.
Any suggestions?