Solution : https://service.sap.com/sap/support/notes/432721 (SAP Service marketplace login required)
Key words :
additional key words hierarchy, 0b import support package 18, 1c import support package 10, 0b support package 18, 1c support package 10, bw support packages, support package, hierarchy update, 0b-patch18, 1c-patch10
Related Notes :
523196 | SAPBWNews BW 2.1C Support Package 18 |