Solution : https://service.sap.com/sap/support/notes/334375 (SAP Service marketplace login required)
Key words :
system generates message mrnb001 ', purchase order history records, additional key words revaluation, -aggregated purchase order history, purchase order history, invoice documents created, credit memos / debits, message class mrnb, goods receipts settled, purchase document 2
Related Notes :
| 311089 | Performance problems because of long PO history |