Solution : https://service.sap.com/sap/support/notes/641084 (SAP Service marketplace login required)
Key words :
production planung run, /sapapo/tcalperi reason, /sapapo/tcalperi table, planning calendar, periodic planning, program error, planning periods, read unnecessarily, runtime problems, large number
Related Notes :
| 370601 | Composite SAP note: APO 3.0 and 3.1 performance |