Solution : https://service.sap.com/sap/support/notes/91335 (SAP Service marketplace login required)
Key words :
long queue times occur, additional key words me21, plant-specific info record, condition table a017, info record, table a017, entire table, purchase order, system reads, buffered completely
Related Notes :
| 205005 | Performance composite note: Purchase order |
| 109886 | ME21, ME22: Performance improvements |
| 23877 | Performance: Buffering condition tables |