Solution : https://service.sap.com/sap/support/notes/353422 (SAP Service marketplace login required)
Key words :
ztta/max_memreq_mb = 640this prevents, areas external data transfer, risk hierarchy/maturity band, free dialog work processes, system-dependent maximum runtime, individual parallel processing parameters, area risk/limit, risk management part, system parameters relevant, asynchronous rfc technology
Related Notes :
202355 | Performance improvement for utilization calculation |
183163 | Performance improvements in single transaction check |