Definicja master data ID
Internal key of type INT4 that you use for master data for master data-bearing characteristics, especially for hierarchy nodes and for characteristic names.
Master data IDs (SIDs) and characteristic values are stored in master data tables (SID tables).
Information about time-independent or time-dependent master data, which is stored in a P table or a Q table, is saved again in an X or Y table, using SIDs instead of characteristic values.
Słownik i definicje SAPa na M.