Error while loading data from flat files

Hi,

I am getting an error while trying to load data in the infocube through flatfiles, Iam following the sap bw FU FU book. the error is in IDOCs and RFC transfer.

Error msg:

Error when updating Idocs in Business Information Warehouse

Diagnosis

Errors have been reported in Business Information Warehouse during IDoc update:

EDI: Partner profile not available

System response

There are IDocs with incorrect status.

Pls let me know how to proceed.

Thanks

Kelly