Solution : https://service.sap.com/sap/support/notes/433157 (SAP Service marketplace login required)
Key words :
symptom long runtimes occur, incoming orders quantity, performance solution implement, source code corrections, /sapapo/rmquot_usage_checkproduct allocations, product allocation assignment, product allocation, /sapapo/atpq_chkusg, /sapapo/atpq_kcgrp_ureport, larger datasets
Related Notes :
676128 | Product allocations: Product allocation assignment check |
420606 | Collective SAP Note for GATP performance in APO 3.0A |