How to use CONCATENATE Function

@MEMBER(

Summary

How to use CONCATENATE Function

Content

I am trying to push a value of 200 into all my level zero accounts that have a naming convention of Parent name "A12345" plus suffix "X", that is to say A12345X.

 

FIX(@MEMBER(NAME(@PARENT(@CURRMBR("Accounts"))),"X")))

"Final" = 200;

ENDFIX

 

The above syntax  does not seem to work. Can any suggest?