Mapping Text Datasource with 2 Keys fields and Infoobject

Hey,

I want to extract the Descriptions of an InfoObject MFRLEVEL ( approval Level) and its has no attributes, but is already used in one of the DSO.

The description come from Table MFRTABLE which has MFRLEVEL & 0COMPCODE are key fields. I have created Generic Datasource of type Text DS_MFRLEVEL_TXT based on this Table MFRTABLE and replication on BW works fine. Hence the datasource has they 2 key fields.

Now I have defined InfoObject MFRLEVEL as containing Master Data Characteristic with text.  When I create a transformation between the DS_MFRLEVEL_TXT and MFRLEVEL, I am not sure how can I map the 2 key fields from Datasource into MFRLEVEL with no 0COMPCODE as key ?

One possibility would be add 0COMPCODE as compounding field for MFRLEVEL ? For which i will have to empty the SID table or empty the DSO

Is there any other way?

Thanks in advance!

Vittali