SAP Message WRF_STR021 - Period type &1 (&2) is not supported

Diagnosis
Only period types day (DD), week (WK), and month (MN) are supported.

Procedure
Select a suitable query or change the selected query accordingly in theSAP BW. If you change the query, you will also have to update theCustomizing for data retraction in SAP R/3.
INCLUDE ISR_CUSTOMIZING