Solution : https://service.sap.com/sap/support/notes/142018 (SAP Service marketplace login required)
Key words :
system displays error message ma640, additional key words, sales & operations planning, planning type determines, planning parameters, demand management, mass processing, background log, data transfer, info structure
Related Notes :
| 160835 | Error message MA113 issued with incorrect factory calendar I |
| 105376 | Transfer to demand management: error message MA640 |