Hi SR,
Carry Over Value to KOMP-KZWI1, KZWI2 etc. will copy the value present in that step for further use in any of the other steps in the Pricing Procedure and it will finally be copied into the corresponding field of the VBAP/EKPO table (depending on where it is used). This is generally used for Reporting purposes.
There are many documents and discussions already available on this topic. Please check the same for any further doubts.
The use of some values in Sub total column&nbsp... | SCN
Please refer to the SAP Notes 1022966 and 155012 for further details.
Thank you,
Regards,
Som