Solution : https://service.sap.com/sap/support/notes/615282 (SAP Service marketplace login required)
Key words :
bc-bas-des interface, lower support package level, sap standard applications require, support package 01to display, sap support package level, sap support package versions, sap gui dialog transactions, limited data type dec2_1, support package 38in 6, support package 36in 6
Related Notes :
| 902995 | Duplicates: Limit value for similarity in dialog |
| 687865 | Duplicate check: 100 % hits in BAS interface |
| 687828 | SAP BP API: Duplicate check 100 % correspondence |
| 196958 | Collective note: Errors in interface for duplicate check |