Solution : https://service.sap.com/sap/support/notes/600419 (SAP Service marketplace login required)
Key words :
parameter typing reference type it_posmapn type /sapapo/posmapn_tab save, converting internal line item numbers, external line item numbers, '/sapapo/map_item_n' function group, enter /sapapo/map_item_n, enter /sapapo/map_delnr_preread, experience long runtimes, 'initialize work tables', call transaction se37, select 'save'
Related Notes :
| 681193 | Performance: initial data transfer and BOP |
| 650449 | Collective note for GATP Performance in SCM 4.0 |
| 609435 | Composite SAP note: Performance in backorder processing |
| 420606 | Collective SAP Note for GATP performance in APO 3.0A |
| 420598 | Composite SAP Note for GATP performance in APO 3.1 |