Solution : https://service.sap.com/sap/support/notes/618412 (SAP Service marketplace login required)
Key words :
system generates short dump 'perform_conflict_type', attached source code corrections, individual key figure, key figure reason, prerequisites teh problem, planning screen, transaction mc94, program mmcp6fe0, form einheit_calc, terms mc94
Related Notes :
676286 | Short dump PERFORM_CONFLICT_TYPE in MF50 |
624289 | MC94: Composite SAP note Short dump on access |