Solution : https://service.sap.com/sap/support/notes/1139473 (SAP Service marketplace login required)
Key words :
execute transaction dp99a, long runtimes occur, relevant program change, large number, sales orders, form user_read_input_objects, system design, solution implement, prerequisites
Related Notes :
501156 | DP90/DP95: Composite SAP Note for performance notes |