It is a bit tricky to import member descriptions (System name; EVDESCRIPTION) from flat file (.csv) to BPC 10.1.
I spend a lot of time on finding the solution how to import descriptions into BPC 10.1. This Document may help you by doing that and hopefully save you a lot of time ;-)
Step 1:
Make sure that description column in your flat file is in a 2nd place otherwise report package in data manager won't be able to import descriptions into BPC 10.1
Step 2:
In your transformation file you need to put following transformations:
EVDESCRIPTION=*COL(2)
LANGU=*STR(EN)
EN stays for English
For german choose for example DE
Step 3:
Choose Report Package /CPMB/IMPORT_DESCRIPT and undertake your transformations.
If you have questions on this topic you can contact me at any time.
