LSMW field mapping Rule-ABAP code

Dear Guru!

I'm new to ABAP, but I have to write a little in ABAP.

I create a LSMW project using BAPI for changing standart price of material.

Input data: material, price, posting date.

The point is: system should found in table MBEW all valuation areas and valuation types fo which the material record is exist and cang price for all these records.

I wrote a code for these fields in Field Mapping menu. But it puts in only one record whereas I need it to execute BAPI for all records.

I wrote the folliwing:

VALUATIONAREA Valuation Area

Code: tables MBEW.

select * from MBEW

where MATNR = ZHEADER-MATNR.

E1MATERIALVALUATION_PRICECH-VALUATIONAREA = MBEW-BWKEY.

endselect.

VALUATIONTYPE Valuation Type

Code: select * from MBEW

where MATNR = ZHEADER-MATNR.

E1MATERIALVALUATION_PRICECH-VALUATIONTYPE = MBEW-BWTAR.

endselect.

May be it's simple, may be not. But I don't know how do do it.

Will be grateful for any hints.

Thanks.

Edited by: assoli on Aug 3, 2011 3:51 PM