XKWERT is not reflecting with Customized Routine for Condition Type

Dear Experts,

I have created a customized routine 9XX that would calculate the Condition Value, if the value is not 0 for the Exch.rate-acct. field on the Financial Accounting tab on the Sales Order header.

My routine code is as follows:

if komk-kurrf ne '0.00000'.

if sy-subrc = 0.

temp_val = ( komp-mglme * xkomv-kbetr ) / 1000.

xkwert = ( temp_val * komk-kurrf ) / 100000.

xkomv-kwert = xkwert.

modify xkomv.

endif.

endif.

However, the calculated value is not reflected in the Condition Value column during Sales Order creation, change or view. I have included my routine to the condition type in tcode V/O8.

Per my checking, the routine appears in the include list for the main program SAPLV61A.

When I debug, I found that the value in structure xkomv is overridden by value in structure rettkomv, because wertformel = space.

I have gone through the messages below but I am still stuck:

1. losing-values-in-xkomv-structure

2. How to set condition rate using VOFM pricing formula

I'd appreciate your assistance.

Thank you.

HJMY