Please correct me if I am wrong.
2 types of CSV files in a year e.g. 12 CSV of Type A & 12 CSV of Type B
1st I need to create 2 DS (Master Data Attr.) for Type A & B for loading Jan.'s CSVs.
2nd I need to create 2 DS (Transaction Data) for Type A & B for loading Feb. to Dec.'s CSVs.