Solution : https://service.sap.com/sap/support/notes/374910 (SAP Service marketplace login required)
Key words :
bzqid guid external procurement tablesave, additional key words source, enter table /sapapo/trprod, select option 'database table', profile parameter enque/table_size, external procurement relationship', table /sapapo/trprod, profile parameter chosen, call transaction se11, choose goto -> indexes
Related Notes :
374853 | Performance/block processing supply source transfer |
370601 | Composite SAP note: APO 3.0 and 3.1 performance |