Script Logic using user parameters/dynamic value ( BPC NW 7.5 SP18)

Hi, We are upgrading to BPC 7.5 Netweaver SP18 from BPC NW 7.5 SP14. This line in script logic works completely fine in our production SP14 instance, but it doesn't work in SP18 version. Is there a different way I can code this line to make it working?

*XDIM_FILTER CMRAW=[CMRAW].PROPERTIES("BUYER")=$BUYERCODE$

$BUYERCODE$ receives its value from what user entered on the pop-up screen while trying to run the job.

Here is what we have in the ADVANCED section of package to pass the value

TASK(Z_BPC_SC_CALC_LOGIC,REPLACEPARAM,BUYERCODE%EQU%%BUYERCODE%%TAB%FISYR%EQU%%FISYR%) Full logic in script: